Understanding pms & pmdd
PMS covers the mild to moderate physical and mood changes many people experience in the week or two before a period. PMDD is severe, affects around one in twenty menstruating people, and causes real impairment to work and relationships.
The defining feature is the timing. Symptoms appear in the luteal phase, lift within a few days of bleeding starting, and are absent in between. Tracking across two or three cycles is what distinguishes it from a continuous mood disorder.
It is dismissed constantly, which is why people often live with it for a decade before being taken seriously. Being told it is just hormones is not a treatment plan.
Signs to look for
Everyone experiences some of these sometimes. What matters is how many, how long, and how much they interfere with your life.
Mood, in the luteal phase
- Severe irritability or anger disproportionate to triggers
- Marked low mood, hopelessness or tearfulness
- Anxiety and feeling on edge
- Sudden sensitivity to rejection; conflict in relationships
- In some cases, thoughts of suicide that lift with the period
Physical and functional
- Fatigue, appetite changes, disturbed sleep
- Bloating, breast tenderness, headaches
- Difficulty concentrating
- A clear pattern: symptoms ease within days of bleeding
When to seek help
You do not need to be in crisis to deserve support. Consider speaking to someone if:
- Symptoms are affecting work or relationships each month
- You experience suicidal thoughts in the premenstrual phase
- You have been dismissed and want it assessed properly
- You cannot tell whether this is cyclical or continuous
What helps
Tracking, for two to three cycles
Daily ratings of mood against cycle day are the single most useful thing you can bring to a clinician. They establish whether the pattern is genuinely cyclical, which changes the treatment.
Therapy targeted at the phase
CBT adapted for PMDD helps with the specific pattern — anticipating the phase, planning around it, and reducing the damage done to relationships during it.
Medical options
Several medical treatments have evidence for PMDD, including some used cyclically. That is a conversation for a gynaecologist or psychiatrist; we do not prescribe.
Telling people close to you
Naming the pattern in advance, rather than explaining after a conflict, changes how it is received at home.
Common questions
Is PMDD real, or just bad PMS?
It is a recognised diagnosis, distinct from PMS in severity and impairment. Around one in twenty menstruating people meet criteria.
How is it told apart from depression?
By timing. PMDD symptoms are confined to the luteal phase and lift after bleeding begins. Depression does not follow the cycle. Tracking is what settles it.
My doctor said it is normal. What now?
Take two to three cycles of daily tracking to the appointment. Documented cyclical impairment is much harder to dismiss, and you are entitled to a second opinion.