I hope you had this spot on the inside of your cheeck checked out. The thing you said about being too young to have oral cancer...I had it at age 21. I am lucky to be alive, and I have been told that by every Dr that I have ever seen, I am a survivor of 40 years. I had surgery and they removed half the roof of my mouth and half my cheek bone. Especially if you "chew", do yourself a big favor, quit...and by all means go to a Dr. Judy