Barium test symptoms and conditions

i have had problems with acid reflux for approx 5 years now and have tried everything pretty much. i first went for tests and they did the one where you swallow the liquid metal stuff (barium?) and then a endoscopy. my regular doctor said i had a slight hiatal hernia after the barium test and after the endoscopy my stomach dr said i had acid reflux and didn't have a hernia so he started me off with nexium which worked good for a while but i began to have side effects . i would just feel not right mentally cloudy all day, extremely dizzy.after that it seemed like every drug he put me on (prilosec,aciphex,prevacid) seemed to have the same results. so i decided to see if i stopped completely if these feelings would go away and sure enough they did but the acid was soon to follow. i started taking zantac 150's and they worked but now i feel like i cant sleep at night and sure enough thats one of the side effects. i also read not to drink alcohol when using these drugs. so now i pretty much sit here not knowing what move to make next