I am 21 and had a pea-sized, firm, moveable lump appear overnight under the skin about an inch
above and to the left of my adam's apple. It doesn't seem to hurt unless I mess
with it, and it is colorless. I have been seek for the past week before it
showed up, and my tonsils are swollen. I haven't had a sore throat or cough, but
I have been hacking up mucus that is light yellow in color. Could this be a
swollen lymph node, cyst, or what is it most likely?