This may sound silly:( but...(oral cancer)
I awoke this morning to a feeling of unsmooth skin in my mouth right behind my lip. I thought maybe i bit my lip in the middle of the night? so i just looked in a mirror and it was a white splotchy patch...some of it looks slighty red, not sure if it's from dry blood or discoloration. I am a smoker but did go to the dentist a month ago and this wasn't there and he didn't say anything unusual. Also I just woke up with it today and i don't know with oral cancer how fast things appear. The problem is i made the mistake of looking up pics of oral cancer on the net and that is what it looks like! sigh, just tell me i am being ridiculous so i can put my mind at ease!!!