Spot in mouth irritated when eating certain foods. CONSTANT bad taste in mouth
I've had this spot in my mouth that is irritated quite frequently. It's behind my back tooth on the bottom, maybe where my tongue and my mouth connect in the back, but hard to tell. I can't see anything there, and a few months ago when I went to the dentist and told him, he couldn't see anything either.
Well, it's getting worse, and when I eat things acidic or sour it really hurts. Even things like catsup.
Also since December I've had a nasty taste in the back of my mouth with no apparent cause. It's there ALL the time. I've stepped up my oral hygeine, but it hasn't helped. I'm using mouthwash, flossing better, nothing helps. It's always there. My mouth and back of my throat also feel weird, don't know how to describe it. Maybe kinda cold, not sure if that's accurate.
It's driving me crazy!!
Please help if you know what this might be caused by.