I would strongly suggest going to Mayo for an endoscopy. I have been told by my Dr at Mayo that A Hiatial hernia can be corrected thru surgery if there is no Barretts located in the hernia area. I suffered with GERD for many years with a hiatial hernia and I developed Barretts esophagus with high grade dysplasia. Since going to mayo for treatment i no long have dysplasia. Since the dysplasia in where the hernia is, it can't be corrected. By the way, I have been taking Nexium 4 times the recommended dosage for 3 years now under my Mayo Dr. Supervision with no ill effects. The only thing I need to monitor is my calcium uptake since Nexium can lower its absorption. I take 2000 units of D3. Going to Mayo was a God send for me.