One day i was sitting down just talking and then this awful taste in my mouth just came out of no were, it was really scary. Its been about 3 months now and i still have this problem, ive had an upper GI done and been to an ENT and they can not diagnose me. this bad tast comes in the morning, and afternoon and sometimes at nite, and some times it will go away for a couple of days and come back. Can anyone help
