What are the small, ulcer like bumps under my tongue. two were red. the rest were plain. they don't hurt at all, but one that i couldn't see did.

Hard to guess: It is hard to tell you what you have without seeing it. If it bothers you and does not improve or resolve see you doctor.

See an oral surgeon!: Please see and oral surgeon for an evaluation. Ulcers under the tongue are of high suspicion. It needs to be looked at and likely biopsied to see if it is a cancer. Any lesion in the oral cavity that is persistent for more than 7 days needs to be looked at. The sooner the diagnosis the better your treatment options and outcome are.