When I was in the 5th grade (im 19 now), I had pneumonia or however you spell it, along with a relapse and was out of school for 3 months. When this was finally over, I felt like this resulted in an extremely high gag reflex feeling and it feels like my throat tightens up all of a sudden and my stomach feels nauseated . Every time I would get into a social situation, I would feel extremely nervous and have a gag-like feeling that I couldn't control. I went to multiple doctors and psychologist but they could find nothing wrong with me and assumed it was just social anxiety from not being at school for 3 months.
Fast forward 10 years later and I still have this same feeling, but now I am trying to really figure out whats wrong. So far, I've noticed that I get this extremely high gag reflex when I: do cardio or a workout of any sort, when im in new social situations that make me anxious/nervous, right after I eat any meal (which is why I think it might be GERD), and even when im singing to myself for fun, after 3 or 4 songs I start to feel it as well. Now I've tried to figure out what all of these have in common that might trigger it and im pretty sure it has to do with BREATHING. Singing, cardio, anxiousness, and being bloated are all heavily focused on the breathing aspect, and since this all started when I had pneumonia which im pretty sure is a breathing sickness thing, I'm thinking something may be wrong with my lungs or something similar? As for how I've been coping when I get this feeling: 7-UP, gum, mints, altoids, and cough drops seem to temporarily help (sometimes they dont).
If anyone has any idea if this is actually a disease, or its psychological, I'd really appreciate it thanks.