Bout two months ago i began having palpitations and other issues, and after running all these tests, my heart came back fine. After discovering my burping and acid reflux could have caused it they diagnosed me with GERD. I have taken prilosec, provead ( not sure on the spelling), zantac, and bunches of others, and the NExium 40m. im now taking has been bumped to twice a day and i now take gaviscon during the day and at night to control my palpitations. It's been really freaking me out considering i've basically never been sick in my life til now. So at 22, they just gave me an endoscopy (tube down the throat), and everything came back fine. Now a couple days later my throat is starting to close up, i can't eat anything besides bread, and i have to go back in to take some ph 24 hr. test and a swallowing something measure test... Could you guys tell me what to expect or is this normal? no one i know has this stuff and it's freaking me out, cause everyone in my family is going through cancers and other diseases.