Suggest Remedy For Abdominal Pain, Diarrhea And Headache During Pregnancy

I am having my first child and I am 13 weeks. I am having really bad stomach pain that feels like ulcers. It started yesterday at work when I almost passed out and arrived home with diarrhea. Later that night I began to throw up. I woke up this morning with a severe headache, fever and the stomach pains. I can t eat without crying.