I feel the same way it has been awful! Can't wait for this part to be over. She prescribed me diclectin but it wasn't working so had to up how many I take and she also said Could take gravol. My husband got me the natural ginger gravol and it helped a bit yesterday I was able to keep down some food.
Unfortunately it can be like that for a few days to weeks depending on your body. Try to stay hydrated and you may want to experiment with foods that may settle your tummy like soup broth, fresh ginger root or saltine crackers. If it continues definitely share this with your doctor as there are anti nausea medicines that may be prescribed.