I to chewed 30 some years. How I found out was 2 little lesions where I put my snuff. Like you I put it off,cause I really didn't want to know. First guy I seen told me right away he thought it was oral cancer,but wasn't sure. So he sent me to a oral surgeon,he pull 2 teeth said he seen a bad rootcanel. Everything healed back up in my mouth,but lymph node was still swollen. He then sent me to a ENT told me pretty much same thing your to young for this type of cancer,you would have more signs then what u do. Well he gave me more pills told me to come back in 2 weeks. When I did node was infected went to hospital to have drained that's when I found out it was squamous cell. Stage 4 in jaw and in lymph nodes in my neck. I guess what I'm saying is don't wait go as soon as u can!