I have been having gastric reflux symptoms off and on for 2years. I recently consulted a gastroenterologist. He prescribed nexeum which helped for one week. I repeated another 14 day dose without symptoms while I was taking the medication, but on the 8 day broke out in a rash with hives and itching. This had happened with another ppi. I stopped the medication. Ihave been taking tums, mylanta and just started drinking small doses of apple cider vinager in the last two days. I was awoken tonight with pressure type pain between by breast through to my back and nausea . Sitting up has helped to relief some of the pressure and small sips of water. What do I do next? Do I have a hiatal hernia?