I had a Heller myotomy and Nissen fundoplication done 8 years ago and also several upper endoscopies with esophageal dilation, but still have esophageal spasms that can get quite painful. Feels like food does not want to go down, chest pain and pressure that feel like heart attack. I had cardiac evaluation which was normal. My gastroenterologist said that there is a medication that can help, but it causes constipation which means I cannot take it, suffering from severe constipation also. At this point, I guess I just need to eat slowly and keep anxiety down and learn to live with it. It seems that after you reach 70 everything becomes chronic and incurable!