I was diagnosed with jackhammer esophagus a year ago. Was misdiagnosed as gets for many years. I couldn’t eat without throwing up and always felt like I was having a heart attack. There are a few treatment options available for this one is a Botox injection in the esophagus which relaxes the muscle. I had this and it worked temporarily. Unfortunately it doesn’t last and have to have injections every couple months and eventually it won’t work. 6 weeks ago I had a surgery called a P.O.E.M procedure. They actually go in with a scope and cut the muscle. I can now eat food without it coming back up or getting stuck. The procedure has a really high success rate but finding a dr that will do the procedure is a little challenging as this is a fairly new procedure. Hope this helps