ok. I am 68. don't look my age. pretty healthy. have had cancer sores in my mouth since I was a teenager, nothing much...maybe 3 per year. I bit the very tip of my tongue about 3 days ago and my tongue has hurt in this area, and to my thinking, for good reason, I bit it pretty badly. Today, at work, I looked in a mirror at the tip of my tongue and there is a white spot right where I bit it, that is perfectly round, slightly raised, and pretty white. I don't know if I should give this a week to see if it goes away or if it develops into a cancer sore, or if this is by happenstance, an indication of something more serious. Do you think I should watch it for a handful of days before seeing my doc?