its just a very general observation. i'm not sure if my descriptio is 100% correct. i guess you are right.....go to the doctor.
try it for yourself.....some of you may have it some may not. goto the mirror and get a SMALL flashlight or something. while looking in the morror, flash the light IN you mouth and not into the mirror.
I DID NOT INVENT THIS METHOD...MY FRIEND TOLD ME SO I FELT COMPELLED TO DO IT...NOW I AM WORRIED.
lmk if you guys come up with something.