How Can severe Lower Abdominal Pain Along With Dizziness be Treated?

I ve had a bad stomach ache on and off for over a week. Constant pain in lower stomach. Yesterday I started blacking out, i was shaking, dizzy, headache, hot flashes. This use to happen a lot, bc I was hypoglycemic, but I ve been on metformin for a few months now and feel great. I m insulin resistant. I had a period for four days. It was 5 days late. But it was heavy. I ve woken up in the middle of a sound sleep about to throw up. I take a zofram and feel better. I turn 30 in a few days. Any ideas? Thanks!!