# When sadness is more than PMS

> How to tell a rough few days from something that needs more support.

Category: Mind & mood · 3 min read · Written by the Splash team · Sources checked October 2026
URL: https://splash.care/learn/mind-mood/more-than-pms

## Quick answer

- Brief pre-period low mood is common; weeks-long sadness is not something to push through.
- PMS, PMDD and depression have different patterns, and tracking shows which fits.
- Low mood for 2 weeks or more is a reason to see a GP.
- Help is available 24/7.

Feeling teary or flat for a day or two before your period is common. But if sadness is heavy, lasts for weeks, or never fully lifts, it is worth looking at more closely. Getting help early is a strength, not a failure.

## Three patterns to know

- **PMS**: mood and body symptoms in the weeks before your period that ease once it starts. The NHS says most people get [PMS](https://splash.care/learn/glossary/pms) at some point.
- **PMDD**: a much more intense form of [PMS](https://splash.care/learn/conditions/pms) that can have a big effect on daily life. Reviews estimate that it affects roughly 3 to 8 in every 100 people who have periods. The NHS says it can include feeling very [anxious](https://splash.care/learn/mind-mood/luteal-anxiety), angry, depressed or suicidal.
- **Depression or anxiety that gets worse before periods**: symptoms most of the time, sometimes sharper in the days before a period (sometimes called premenstrual exacerbation).

## Signs of depression

The NHS says a [low mood](https://splash.care/learn/mind-mood/why-mood-shifts) that lasts 2 weeks or more could be a sign of depression. Signs include:

- Persistent low mood or hopelessness
- Not getting any enjoyment out of things you used to enjoy
- Changes in [sleep](https://splash.care/learn/movement-sleep/sleep-cycle) or appetite
- Low energy and trouble concentrating
- Feeling worthless or guilty
- Thoughts of self-harm or suicide

**1.5×** Depression is about 1.5 times more common among women than among men (WHO)

> **Splash says:** rate your mood every day in Splash. If the low days are spread all over the calendar rather than bunched before your period, that is important information for your GP. Two cycles of tracking is what the NHS suggests.

## What can help

For PMS and [PMDD](https://splash.care/learn/glossary/pmdd), the NHS says a GP may suggest hormonal medicine such as the combined pill, [CBT](https://splash.care/learn/glossary/cbt), or antidepressants, and may refer you to a specialist if these do not help. These have better evidence than supplements or special diets.

## Where to get support

- [Your GP](https://splash.care/learn/conditions/talk-to-your-doctor), who can advise on treatments and refer you on
- NHS Talking Therapies (you can self-refer if you are 18 or over, registered with a GP, in England)
- Samaritans: 116 123, free, 24/7
- Shout: text SHOUT to 85258, free, 24/7
- Someone you trust: a friend, family member or teacher

### When to see a doctor

See a GP if low mood lasts more than 2 weeks, affects daily life, or keeps returning. If you have PMDD symptoms and feel suicidal, the NHS says to call 999 or go to A&E. If you ever feel unsafe or have thoughts of harming yourself, please reach out now. If you are in danger, call 999 or go to A&E. For urgent help that is not an emergency, call NHS 111 and choose the mental health option (England), or call Samaritans free on 116 123, any time. You can also text SHOUT to 85258.

## Sources

1. [NHS: Low mood, sadness and depression](https://www.nhs.uk/mental-health/feelings-symptoms-behaviours/feelings-and-symptoms/low-mood-sadness-depression/)
2. [NHS: Depression in adults](https://www.nhs.uk/mental-health/conditions/depression-in-adults/overview/)
3. [NHS: PMS (premenstrual syndrome)](https://www.nhs.uk/conditions/pre-menstrual-syndrome/)
4. [Robinson et al. (2025) Nutritional interventions and the psychological symptoms of PMS: systematic review, Nutrition Reviews (background on PMS and PMDD)](https://pmc.ncbi.nlm.nih.gov/articles/PMC11723155/)
5. [WHO: Depressive disorder (depression) fact sheet](https://www.who.int/news-room/fact-sheets/detail/depression)
6. [Cleveland Clinic: Premenstrual dysphoric disorder (PMDD)](https://my.clevelandclinic.org/health/diseases/9132-premenstrual-dysphoric-disorder-pmdd)
7. [Samaritans: Contact us](https://www.samaritans.org/how-we-can-help/contact-samaritan/)

This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US).