Probably hormonal though. My PMT consisted of:
sobbing the evening before a bleed began even if a period wasn't due
a change of location would bring on a bleed i.e. going abroad with the upheaval of travelling, different water and food plus being with a group of other girls
sudden hunger which would cause nausea++
anger - I would be OK for weeks about issues but in those 10-14 days I would FLY about the same thing

I would throw things in temper or kick doors
aching thighs
feeling like my bottom would fall out

- all would disappear once the bleed began, however, I had very heavy clots, INTENSE pains and nausea .......... for 1-2 days. I can't remember any problems after other than the requirement to wear heavy pads and change often and lay on a thick towel in the night

What would cause symptoms at that end of your cycle?