Hello everyone. I'm a 28-year-old female and I have been smoking for about 10 years. About 8 or 9 years ago noticed some small moving lumps on the inside of my bottom gum and they never changed or anything so I never worried about them, but about a year ago i noticed 3 more tiny bumps two on the lower inside right gum and one on the left. Though they don't seem to have grown any in the year or so since I've noticed them I've been very concerned that they could be oral cancer. They cannot be seen, only felt with my tongue or a finger. I finally got my nerve up and went to my regular doctor about them day before yesterday. He looked inside my mouth, under my tongue and said he saw nothing out of the ordinary. I told him that they aren't visible, only palpable. He looked once again and said "I still don't see anything." Then he said for me to just keep an eye on them. I told him I'd first noticed them about a year ago and he replied "well if it hasn't done anything to you in a year's time you shouldn't worry about it." But I am still worried about it. What should I do? Heed the doctor's advice or seek another opinion? Thanks.