Severe nausea and vomiting

I am 5 weeks I have been up with nausea and vomiting all night I have thrown up all the bile in my stomach I tried to drink some soda I threw that up I ate a bite of a cracker I vomited that as well. I feel awful I can’t eat or drink or sleep I had to call of work I’m miserable. Is there anything I can do? I have tried ginger, eating small meals nothing is helping