Constant chest pain
Hello, this is my first time posting about this and I am not quite sure how to proceed. I am a 33 year old Caucasian man, 5'9" 165lbs, that has had 24/7 constant chest pain with a slight lightheaded feeling for about 17 months. The pain is now difficult to describe but felt like a constant burning sensation right behind the breast bone for the first year or so. The pain is about a 3/10 mostly but will get down to a 1/10 sometimes during the day that may even last a couple days, which is like a vacation. It also sometimes reaches a 6 or 7/10 for hours at a time, which is kind of like mild torture. Sometimes the lightheaded feeling will get a bit worse independent from a change in pain and sometimes correlative. The head feeling is difficult to describe but is like when you strain your eyes by crossing them for a while; it is mild, doesn't effect my life and isn't really a problem. I went to the emergency room twice the first month it started 11/17 and they found only high blood pressure after chest x-ray, blood test for heart damage, EKG, etc. I had the high BP untreated since I left the military when I was 22 at about 160/100. I have been on BP medication since this started and it is usually clinically tested at 130/80. In the year and a half since this started I have had many blood tests checking everything from cholesterol to cancer markers all negative. I had an upper GI endoscopy that showed re-flux esophagitis on 11/17 but nothing else. An echo cardiogram and stress test on 10/18 negative. A barium swallow on 2/19 that showed mild re-flux but no esophagitis. I don't know what else to do at this point. I have been taking Nexium for months with no change. I have dramatically changed my diet to mostly greens and chicken from regular fast food, no change. I used to be a very heavy smoker for 10 years, I have quit and no change. I used to be a very heavy drinker for 10 years, quit for 10 months with no change, now I drink a little occasionally. I have an active career as a field technician for AT&T so I am very active. I try to do cardio also sometimes but the exercise makes the pain kind of change and get slightly worse which scares me so I stop after only 30 minutes. Doctors seem to be kind of useless and I feel as though I need to ask for tests and suggest options. Any suggestions on what I should do next?