Im lost in life..

So since I'm irregular its hard to determine when I'm actually supposed to get my period. I was supposed to ovulate (according to Glow) on 10/19. Did the dirty yada yada. Kept doing OPKs and got positives in 10/28 and 10/29. I was due for AF (according to Glow) on 11/2. For the past week I have had the following symptoms.

Neasea (especially in the morning)

Diarrhea

Constipation

Cramping (mild to moderate)

Loss of appetite

Back ache

I have tested, the last time being a few days ago and all negative (1 evap). What should I do? Ive never had cramps without having my period.