Thanks everyone!

Jerry, the small red spot is under the tongue, like not on the botom of the tongue, but the floor of the mouth-type thing, and it's red. And it has been there since Octoberish, but it hasn't gotten any larger, or any smaller.

And the bump at the back (papilla) is bigger than the rest, and it's more on the side of the tongue, at the back. Right beside his teeth. And he said that that is what feels like something is biting him, around that area.

Thanks Jerry, and everyone, this has relieved some stress for now!