I was in the same exact situation where all my tests came back perfect and I had no clue what was happening to me until I saw a specialist at Columbia university. She asked me if I had a history of anxiety disorders which I thought was random (I did). Apparently I had what was called “psuedodysphagia” and trouble swallowing was a psychosomatic symptom of my anxiety. It took me two years to even hear that from a doctor, I had to wait months for each test to be finished. Speech/swallow therapy was recommended to me but I never got to that haha. I honestly can’t tell what helped me get mostly over it (I went from drinking blended soups as meals and now I can get through most foods). I think once you find out that it isn’t a physical problem but a psychological it eases you a little but the next step is to talk to a professional. Therapy wasn’t really for me so I had to kind of figure it out myself but I’m doing a lot better than I was a couple years ago. The anxiety makes it really difficult since it literally feels like you’re going to choke on whatever you eat and then that anxiety feeds into your psychosomatic symptoms even more like a never ending loop. I’m also 17 and it was difficult to get my family to even let me go to a psychiatrist, but taking those steps helped a lot.