I originally had bms back in 2015 thru time it got better and I hardly knew I had it. Then starting in 2021 I was diagnosed with glossopharyngeal neuralgia and had surgery on that nerve ( which they ended up cutting) and putting in a decompression pad to keep the artery away from that nerve. Then about 4 months later (and following my second Covid vaccination) my bms came back with a vengeance. Not only that I now have a taste I get in my mouth that is very sour and is really worse than the burning sensation. No matter what I eat it leaves a sour taste after I finish eating. Food tastes fine when I’m eating but shortly after the sour taste comes on. Brushing and flossing my teeth helps at times but not always. I’ve tried just about Everything I can think of but can’t get the sour taste to go away. Anyone else have this problem?