Throwing up and diarrhea HELP!!!

Vivian
Ladies, since yesterday last night around 9:45 I started to get the hot flashes, shakiness, Dizziness all at once. Then came the diarrhea and nausea and what felt like to me were contractions. They hurt so bad. After I vomited the first time they went away. I've been Going to the restroom all night (7x) to be exact. I've throw my twice. 
My stomach sounds like rumbles Over and over again.
Is it somethings ate that my stomach just didn't I take well? 
Can someone help. I am 36 wks pregnant and extremely nervous and scared. I've been drinking water to stay hydrated.