Zantac and cant sleep

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

I have a 9 month old baby. At the age of 2 weeks he started having a lot of stomach problems which included constipation, colics, vomiting, blooding. After several medical examination it was found he had acid reflux and allergic to regular baby formula. He was placed a special formula called Nutramigen. At the age of 5 months we have noticed him to be very hyper, won't sleep much even during the night. During the day he might sleep twice a day (app. 9:30 a.m. and 4:00 p.m.) for maybe 45 minutes at the most. He wakes up twice a night when before he was sleeping for almost over 8 hours. Like I said this happened at 5 months old. He is on Zantac twice a day. Could this medication be affecting him in this manner. He at times looks quite tired, stays still for a little while and it seems like he recharges and gets more energy. This is also taking a toll on me as I don't get too much rest and the interrupted sleep at night is affecting me. Please let me know anything that you can on this situation or who or where you can refer me to for more research. I feel something is going on with this medication.