Can't take it anymore!!

Please help. For the past two months I feel nauseous all day every day. From the moment I wake up until the moment I go to bed. I am not actually sick, and apart from a heavy, tender feeling in my stomach I do not have any pain. I have a constant bad taste in my mouth and a dry mouth. I had an endosocopy and they said I had erosion on my esophogaus so my Dr put me on prilosec. The prilosec did nothing at all. I have had the two gallbladder tests and my gallbladder is functioning normally. My Dr has doubled the dose of my prilosec and told me that if I dont feel better in two weeks, ( which will be this Friday) he will refer me back to the gastreoenterologist. I have had no heartburn and no acid coming back into my mouth. The nausea feels like hunger pangs, indeed I only feel ok when I am eating, so have put on 10lbs which I cannot afford to do. I am at my wits end and starting to dread getting up in the mornings. They are treating me as if I have acid reflux, but I thought with acid reflux you actually feel worse lying down and I actually feel better. ALso, as I said I have had NO heartburn or acid washing back up. Just the constant nausea, dry mouth, bad taste in mouth and tender tummy.