Today I experienced some odd pain just above my elbow crease (left arm), and went to rub the spot, as I was surprised. Then, I quickly noticed a large lump, slightly firm, just above the crease towards the outside. I then rubbed the other side and noticed that there is one there too, but considerably smaller and is not tender.
The initial pain is now gone, but the lump is not. It is still very tender. I have gone over everything I can think of and have no idea what this could be. It doesn't feel like muscle, as it doesn't feel like it is connected to anything, although it doesn't move around.