Hi everyone, It is being a few months that i get this sour taste in my mouth after every meal and sometimes i get a sore throat in the morning not all the time. i tried ppis (nexium) for four months but that made my sore throat and sour taste worse and start having stomach pain while taking ppis. I gradually stop the ppi about two months ago and still have this sour taste in my mouth. i had an endoscopy and coloscopy two months ago and everything was normal. has anyone deal with this sour tastes in the mouth after every meal? have any found an answer for this?