I have just been perscribed Xanax for panic attacks and I have GERD. Will the Xanax make my GERD worse? I've heard froma few people that it made their GERD symptoms less and feel better. Also, this is really bizzar, but has anyone ever heard of a fear of throwing up? I've had it since I was a kid, and since I've been so anxious, my fear has been put into overdrive. Like I'm afraid to eat because I'm afraid I'm going to throw it up, afraid to sleep because I'm afraid I'll throw up inmy sleep. Has anyone ever heard of such a strange fear?