Ryobi--It appears to me that you overcame a lot of obstacles in your life. What courage and determination ! I admire your persistance. What are your disabilities that you can't work ?
You are a survivor considering all that you've been through.
Now, I will get down to business. STOP CHEWING, SMOKING, DRINKING and get yourself to another doctor and get more than one diagnosis. And, by all means, get a biopsy done. I don't mean to be yelling at you (lol) but if that's what it takes to get you on the right road then consider this being scolded. Would you believe my son still chews. You'd think looking at his sick father that it would knock some sense into him. Okay, you take care and get "moving"........