I was having mouth issues about a year ago that were intermitent and resolved themselves. I woke this morning with what felt like a cancor sore pain and when I looked in my mouth, I noticed that if I pulled my tongue over there was what looked like a tag of skin or something. I had felt it with my tongue but never noticed it before. It is next to what I think is my lingual muscle under my tongue, right near the base of my tongue.

Any ideas? Are there things such as flaps of skin in the mouth?

OK you have been in this palce before
GO THE DR...suck it up but why not do it? and hoping that it is nuthin but only a dr perhaps your previous ent can be for sure..after your last scare that brought you here why mess around...