I, too have a bump under
. It is right on the skin that connects my tongue
to my lower jaw, so when i move my tongue, it hurts. It started recently, and has been recurring on and off. However, this morning it was at its fullest and largest size. It appears to be clear, with some sort of transparent fluid inside. It hurts when I eat, for it involved tongue movement. I do not smoke, chew tobacco, or anything of the sort, nor have I ever. Looking at it, it has gotten MUCH bigger over time.