Terrible period pain but no period??

[badietbuddy]

Let's start this by saying that there is no man so there can be no baby
I have had terrible period pain since yesterday and still no sign of the damn thing. I am already a week late I am dieting so wonder if this is what has caused the delay? But the pain I haven't had it this bad since my teens, I literally want to throw up, the pain is so bad. So, something to worry about, or shall I just pop a few ibuprofen and feel sorry for myself?

Age?

26 if you're asking. Cheeky mare if not

Endometriosis? I have this and sometimes it is breathtakingly painful.

Could be simple constipation/IBS especially if your diet has changed. I know that when I get an attack its like a dragging low pain.

Depending on how your dieting too this can serverly change your hormones so be very careful.

Any chance of pregnancy?