Ive been suffering from acid reflux/heartburn and esophighitus for 5 years, i was taking nexium and doing pretty well, i then switched to prevacid around february of 2012, i started doing fine on the prevacid and around the end of may 2012 i started getting nausea, congestion in my throat / constant clearing and difficulty swallowing and sweelling of the glands. none of my gastroentestinal doctors help me they all say nothing wrong with me but i hear alotta things on prevacid and the sideaffects? the nausea