i have a small hard white bump on the very side of my tongue, its painless, and it moves slightly but is hard, also because i was worried about this i inspected my throat further with my finger and on the very far back of my tongue where you cant see there are many bumps on the skin again completely painless. I have no trouble swallowing, i am not ill and don't have a sore throat. I do smoke, can anybody tell me what it might be?