I have a lump behind
my right ear
, it hurts, but not bad, to touch. It is very big, the size of a cherry maybe. It is sensitive to the touch. I had the same thing a few months ago, it went away on its own, and is now back, and larger. I am not sure if it has anything to do with it, but I did have my first migraine ever, a few weeks ago. I am 21 years old, generally in good health. Take pain medication due to chronic pain from a broken pelvis.