4 months after endoscopy now have severe pain in throat caught strep throat and thrush.

in November had a endoscopy for left side abdomen pain. endoscopy just said acid reflux they did 2 biopsies on esophagus cause of irritation.. a day later had upper chest pain near throat and chest meet ever since November plus mouth and throat burning told gi he just said its acid reflux mind u never had this a month later developed strep throat than a month later thrush in January been on gerd diet and ppi nothing working and getting worse did barium swallow test and ct scans show nothing but I feel like im something is not right something happened when I had the endoscopy since I've literally been dealing with this since the day I had the endoscopy im really scared. had gallbladder removed because of gallstones hoping that would be the issue but unfortunately not anyone else dealing with this.. throat and ears and nose constantly on fire and irritation