I was prescribe Tavor (1 mg) by a doctor, took 1 or 1.5 for a presentation last semester and felt a little headachy afterwards. Yesterday, I took two and I've been in bed sick for more than a day now. Vomiting, severe headache, I stumbled a bit trying to get home. This seems like a serious reaction. What could this be? I took the recommended dosage which was 2 mg. I used to be on Xanax which would give me no such reaction. I'm thinking that I might have a strange allergy or it interacted with food I ate. I do take multivitamins. But I really can't think of what the problem is.