What is the lump in my neck?
I've had a lump in my neck, closer to my collar bone, for a few weeks now; it's the size of a quarter, hurts when I touch it, and is very, very firm. It's sort of like a giant marble. I blew it off hoping it would just go away. My boyfriend checked it out to see if maybe it was a knot from working out, but even he's concerned.
Any suggestions?