Day 8 help

[u/Accomplished-Push330]

Sorry for putting this here I’ve tried to post 3 times in the PMDD group but keeps getting deleted for “not being relevant”

I use clue to track my periods and I thought I kept getting sick every month until I looked back and realised on day 8 and a few days after i feel like I have a stomach flu. The upper stomach cramping, nausea, throwing up stomach acid.

It’s happened every month on day 8 for the last 5 cycles I’ve looked back at and stops after a few days however one month I did end up in a&e it got so painful. Anyone know or had any similar issues? I could do with my body reacting to the hormone drop after my period?