Don't usually post but I need some advice

Nelson33

So, I am not a regular and have only posted on here once or twice but here goes.

 I am 34 weeks pregnant and this pregnancy has been way different then the last. I have been in and out of the hospital since January with nausea and it just ends up gettting so bad i get an iv of zofran and fluids and am sent home. This Friday though I started to get this very sharp pain in my lower abdominal area and it eventually started to be right where my belly button is. Changing positions (lying down, walking) didn't work. I then started to get the pain with really runny diarrhea (sorry TMI) and this continued into Saturday. Then Saturday night (last night) i got a super bad headache and felt nauseas so I just went to bed. I woke up at 2am and couldn't stop throwing up and my head has been throbbing and now i keep going back and forth between vomitting and diarrhea with the constant pain in my stomach. Think I just ate something bad?? I feel so miserable.