need suggestions

Continuously sick

I will be 29 weeks pregnant tomorrow, and am completely miserable. I have been sick since 6w4d and after trying Phenergan, Compozine, Reglan, and all the over the counter stuff, I am still really sick. I am nauseous pretty much 24 hours a day, and whenever I eat, I feel that my food is stuck in my esophagus, and it makes me want to throw up. Sometimes I force myself to throw up because I am so uncomfortable. I have talked to my ob/gyn and a GI dr and they pretty much said they can't do anything for me. Does anyone else have anything similar to this, and have ANY suggestions?