What is premenstrual syndrome (PMS) and how does it differ from PMDD? Learn about cycle-related mood changes, their causes and practical coping steps.
Do you feel like a different person on certain days of the month? A remark you would normally brush off makes you cry, your partner loading the dishwasher the wrong way sends your anger through the roof, and two days later you wonder, "Why did I make such a big deal of it?" Premenstrual syndrome (PMS) is the group of physical and emotional symptoms that appear in the one to two weeks before a period and ease markedly once the period begins. Most women experience mild changes in this phase; in some, the symptoms become intense enough to shake their work, relationships and self-esteem. This severe picture is called premenstrual dysphoric disorder (PMDD). In this article I will look at the difference between the two conditions, the mechanism behind them and concrete steps that can help you live more peacefully with your cycle.
What Is Premenstrual Syndrome and How Does It Differ From PMDD?
The menstrual cycle is not just a process taking place in the womb; it is a hormonal rhythm that also affects the brain, sleep, appetite and emotions. In the second half, called the "luteal phase", which begins after ovulation, oestrogen and progesterone first rise and then fall rapidly towards the period. Most symptoms become noticeable in the last days, which coincide with this fall.
PMS is usually mild to moderate. Tension, bloating, breast tenderness, fatigue, sugar cravings and sudden mood swings are the most commonly reported complaints. The person is bothered, but life is not greatly disrupted.
PMDD, on the other hand, is a type of depressive disorder defined in the field of mental health. Here marked emotional symptoms are in the foreground: deep hopelessness, intense anger or a tendency to conflict, a sense of losing control, severe anxiety and feeling worthless. The symptoms must have been recorded over at least two consecutive cycles, must almost completely disappear in the week after the period, and must clearly impair the person's functioning.
You can think of the difference like this: in PMS you say "I'm a bit grumpy and tired"; in PMDD, on those days you don't recognise yourself, you seriously think about ending your relationships or quitting your job, and then when your period starts you realise how extreme those thoughts were.
What Are the Symptoms of Premenstrual Tension?
Symptoms vary greatly from person to person. What matters is not so much the individual symptoms as the timing: do the symptoms recur in the same phase of the cycle and fade a few days after the period?
Emotional and mental symptoms
- Sudden crying spells, extreme sensitivity to rejection
- Irritability, impatience, an increased tendency to argue
- Tension, a feeling of being "on edge" or restless
- Low mood, hopelessness, self-criticism
- Difficulty concentrating, forgetfulness, brain fog
- Reduced interest in activities that used to bring enjoyment
Physical and behavioural symptoms
- Bloating, breast tenderness, headaches and joint pain
- Marked fatigue or, conversely, insomnia
- Intense cravings for sweet foods or carbohydrates
- Withdrawing from social situations, cancelling plans
Having some of these symptoms does not on its own mean a diagnosis. Depression, thyroid problems or anxiety disorders can cause similar complaints and may "flare up" before a period. For this reason, an assessment should be made from both the gynaecological and the mental health points of view.
What Causes Premenstrual Syndrome?
For a long time it was explained by "too much hormone" or "too little hormone", but research shows something interesting: the hormone levels of women who experience PMS and PMDD are often similar to those of other women. The difference lies in how sensitively the brain responds to these ordinary hormonal fluctuations.
We can compare it to a sound system. Everyone's music is playing at the same level, but for some people the speaker is tuned to be more sensitive. One of the breakdown products of progesterone acts on brain systems that normally have a calming effect. In some women this system reacts in the opposite way to the sudden change in hormone levels, and instead of calm, tension, anxiety and anger can arise. The serotonin system is also affected by hormonal changes, which partly explains the effects on mood, sleep and appetite.
Why this sensitivity is greater in some women is not fully known. A family predisposition is mentioned; it is also common for women whose mother or sister has had similar symptoms to recognise their own experience more easily. What matters is this: what you experience is not something you are "making up in your head", but a real response of your body and brain.
Besides biology, other factors can also increase the severity of symptoms:
- Chronic stress: A few more drops are added to a glass that is already full.
- Irregular sleep: Insufficient sleep weakens emotional regulation.
- Past trauma and a history of depression: These are counted among the factors that can increase sensitivity.
- Negative thought patterns: The expectation that "Those days are here again, everything will surely be terrible" also shapes perception.
Living With the Cycle in Turkey: The Invisible Burden
In our country, menstruation is still a subject spoken about in whispers in many homes and workplaces. Many women have heard "Don't exaggerate, everyone goes through it" from their mothers, even from their doctors. This approach can lead women with severe symptoms not to seek help for years.
Another problem works in the opposite direction: every justified objection a woman raises is brushed off with the question "Are you on your period?" In this way both a real health problem is belittled and the woman's feelings are invalidated. Both extremes lead to the same result: the woman finds it hard to trust her own experience.
Today's conditions increase the load too. Economic stress brought by the cost of living, long working hours, days divided between childcare and work, and tiring commutes in big cities can make the already demanding last week of the cycle much heavier. So premenstrual syndrome needs to be seen not only as an individual hormonal matter but as a process that interacts with living conditions.
Practical Steps for Coping With PMS
The suggestions below can bring relief in mild and moderate symptoms; with PMDD, they should be thought of as supporting steps alongside professional help.
1. Keep a symptom diary for two months
This is the most instructive step you can take. Take a minute each evening and note three things: which day of the cycle you are on, what your mood is today on a scale of 0 to 10, and what the prominent symptom was. After two cycles the picture is usually clear. Do the symptoms concentrate only in the week before the period, or do they continue through the month and get worse in that week? This distinction is the basis for understanding the difference between PMS, PMDD and another mood problem that flares up before a period.
2. Plan your calendar around your cycle
When your diary shows you the "risky days", knowing them in advance is a great advantage. If possible, avoid placing important presentations, difficult family conversations or big decisions on those days. This is not avoidance, it is smart planning.
3. Try the "hormone filter" technique
In the days before your period your mind can work as if it is wearing a negative filter. When a thought comes, for example "No one loves me, my relationship is over", ask yourself: "Will I think this thought with the same intensity two weeks from now?" Write the thought on a piece of paper, put a date on it, and postpone decisions until the week after your period. This simple postponement, used in the cognitive behavioural approach, prevents momentary feelings from having lasting consequences.
4. Support your body
- Regular brisk walking can help reduce tension, especially in the luteal phase.
- Keep your sleep times consistent; limit screen use late at night.
- Cutting down on caffeine, alcohol and too much salt in these days can ease bloating and restlessness.
- Instead of punishing yourself for sugar cravings, plan regular meals; long gaps without food can increase mood swings through blood sugar fluctuations.
If you are thinking of using vitamins or herbal products, be sure to talk to your doctor.
5. Build an open language with those close to you
Telling your partner or housemate "I'm more sensitive this week, my reaction is about my tiredness, not about you" gives information instead of blame. But this sentence should not become a reason to ignore justified criticism directed at you. For healthy expression, the "I statements" suggestions in the article on healthy communication in relationships may be useful.
6. Prepare a small "hard day plan" for yourself
Thinking becomes difficult once symptoms begin, so the plan needs to be made on calm days. On a piece of paper or in your phone's notes app, write these three headings: "Three things that calm me" (for example a hot shower, a ten-minute walk, a playlist you love), "Three things I will avoid on those days" (scrolling social media late at night, replying to important messages straight away, drinking caffeinated drinks back to back) and "Two people I can ask for support". Many women with premenstrual syndrome say that seeing this list in their own handwriting reduces the sense of helplessness in that moment. The plan is a kindness you do yourself in advance: when the hard day comes, instead of looking for a solution from scratch, you turn to a ready-made roadmap.
Your cycle is not your character; but getting to know it is the first step towards being fairer to yourself.
When Should You Seek Professional Support?
If one or more of the following apply to you, it would be useful to see a specialist:
- If every month you cannot go to work or fulfil your responsibilities for several days
- If serious, recurring fights take place in your relationships in the premenstrual phase
- If feelings of hopelessness and worthlessness become very intense
- If symptoms do not fully go away after the period
- If thoughts of ending your life or harming yourself appear
The last point is especially important: some women with PMDD may have thoughts that life is meaningless, or thoughts of death, during this phase. These are not thoughts to wait out on the basis that "it'll pass anyway". In an emergency, call 112 (emergency services) without wasting time, and do not stay alone.
Assessment generally proceeds in two directions. A gynaecologist investigates hormonal and gynaecological causes; a psychiatrist evaluates medical treatment options if needed; a psychologist works on emotional regulation, thought patterns and lifestyle adjustments. You can find how mood-related processes are approached on the depression and mood page.
How Is Premenstrual Syndrome Approached in Therapy?
Cognitive behavioural therapy (CBT) is one of the approaches supported by research for managing premenstrual symptoms. Therapy does not change hormones, but it can change the mental and behavioural response to hormonal changes, in other words how much the symptoms take over.
In therapy the following steps are typically followed:
- Measurement and awareness: The symptom diary is examined together and a map of your cycle is drawn up.
- Cognitive work: Beliefs that harden on those days, such as "I'm an unstable person" and "This relationship will never get better", are tested. The harsh language the person uses towards themselves is softened.
- Emotion regulation skills: Stepping away from the situation for a short time when anger rises, breathing and body relaxation exercises, the practice of pausing before reacting.
- Lifestyle adjustment: Sleep, movement, workload and social support are planned around the cycle.
- The relationship dimension: If needed, sessions that include the partner support the couple in managing this phase together.
In some women, older themes lie beneath the symptoms: having their feelings brushed off as "exaggeration" in childhood, an expectation of being flawless, or a need to always be agreeable in order to be loved. The premenstrual phase may be the time when these themes come to the surface most. A schema-focused perspective helps in understanding how these old patterns mix into today's reactions. It is possible to get support during this process in Çorum face to face, or through online sessions.
Frequently Asked Questions
How can PMS be told apart from depression?
The key difference is timing. PMS and PMDD symptoms become noticeable in the last week of the cycle, ease in the first days of the period and pass within a few days. In depression, symptoms continue through the month; they may get worse before the period but do not disappear after it. A two-month symptom diary is the most reliable way of making this distinction.
Does premenstrual syndrome change with age?
Yes, it can. Many women notice their symptoms changing in their thirties or after childbirth. In the transition to menopause, because hormonal fluctuations become irregular, emotional symptoms sometimes become noticeable again; I discuss this separately in the article on menopause and mental health.
Does PMDD go away on its own?
Because PMDD is tied to the cycle, it generally ends with menopause; however, this can take years, and you do not have to struggle with the symptoms alone during that time. With therapy, lifestyle adjustments and, where needed, a doctor's assessment, many women find that the burden of their symptoms eases markedly.
How can my partner support me during this phase?
The most helpful support is being beside you without belittling your feelings but also without taking on all the responsibility. Sharing your symptom calendar, dividing up housework in advance for those days and agreeing to put off difficult subjects until the following week protect the relationship. A partner asking "What do you need today?" instead of "Again?" is a small but effective change.
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Eda Erkan Alapala
Klinik Psikolog. İstanbul Kent Üniversitesi Klinik Psikoloji Tezli Yüksek Lisans mezunu; bilişsel davranışçı terapi, çocuk merkezli oyun terapisi ve çocuk-ergen psikoterapisi alanlarında eğitimlerini tamamlamıştır.
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