Tight Chest, Congested Feeling no Cough, Discomfort Taking Deep Breath

Hi. This is my first post. I hope that someone can provide some insight. I've read several posts but cannot pinpoint the exact forum to be in.

I am 49. Quite fit. Normal blood pressure. Normal lab work. Low CT scan number (which I had done in the middle of all this). Chest x-ray normal.

Suddenly in April of this year, my chest started feeling a little tight like I could not take a full deep breath. It was intermittent and mild. Later it developed into what felt like chest congestion but I had no cough. My doctor thought that I might have a mild infection and prescribed antibiotics which seemed to help. It later returned and we discussed if I may have asthma (which I never have had). I have no trouble exhaling or other asthma-like symptoms. However, we tried an asthma-allergy medication for a couple of weeks which made no difference.

I consulted a friend (who is a primary care doctor), and he suggested that I may have silent-reflux (LPR). I've never had any digestive issues or anything to even hint at reflux. My diet was already healthy but I cleaned it up even more, cut back on coffee, alcohol, and tried PPIs (prilosec and pantaprozole) for a month. It really made no difference.

I visited an ENT who used the scope and saw "some" swelling around larynx and agreed with the LPR diagnosis. He encouraged me to keep on the PPIs for another month or so (which I did, along with diet changes), but in the end has made no difference.

My primary doctor suggested that I visit a pulmonologist for their opinion and breathing tests (if required). He thought that I was fine, agreed with LPR diagnosis. We scheduled breathing tests just in case my condition did not improve. After a month of the same, I had the breathing tests done. I was told that my lungs were "pristine" and I should consider a gastroenterologist.

I visited a gastroenterologist and he disagreed with the LPR diagnosis and said that I really have no symptoms of reflux. He offered to do an endoscopy (just to cover the bases) but implied that he did not think it was necessary. I told him that I had been taking the PPIs and he asked if I felt better. He said I should be feeling "like a new man" if it were reflux. I told him that my symptoms had remained constant. He suggested that I stop all PPIs and see if my symptoms change. He even suggested that I may want to see a pulmonologist (which I had already done). I hate taking unnecessary meds, so I stopped. Sure enough, my symptoms have not changed. Still the same daily chest discomfort, tightness.

So here we are nearing the end of September and I still feel the same. I'm not sure where else to turn. My wife thinks that I should get the endoscopy done just to be sure, but to me it really feels like a lung issue. When I take a deep, I feel resistance. It feels like bronchitis without the typical symptoms.

Thank you.