Using this chart as an example.

  1. Does the mood swings only starts on day 1 of menstruation? Obviously it's not down to a perfect science but +/- 1 day?

  2. Are the mood swings more intense the younger they are?

  3. I'm going to assume they are even more irrational the during their menstruation period? Saying and doing shit they don't mean?

  4. Anything that is utterly important that I should know? That I have missed?