I have spastic muscle that starts at the sternum and begins as soreness and tenderness but continues daily and turns into a middle of the chest burn and pain. The pain causes me to feel the movement of food going down my throat and especially around the sternum. I believe it is because it is all inflamed. I have gone through GI testing (first thought it was heart burn) and cardiac testing (stress test and hear imaging) because at it s worse I can feel palpatations and it feels as though my breath has been taken away. I have also had full CT scans of chest stomach and abdomen, endoscopy, stomach empty testing all testing good. I continue to have these spasms and it is affecting my quality of life. I use to walk 3 miles a day and now can only walk the dog around the yard or else the spasm will pressure my chest and take my breath away. What can I do or what type of doctor do I need to see.