Fear of nausea and vomiting. is my anxiety making nausea worse, and then mixing medications also making it worse?

PSYCHIATRIST : Get a comprehensive evaluation from a psychiatrist. Tell him/her all the medications that you are on, and that you are currently experiencing a very unpleasant reaction. Also, I would urge getting a referral to a reputable psychotherapist. The optimal combination for this sort of thing is a combination of medication and therapy, not just one or the other. “Pills and skills” as we often say.