I'm 23, and I just discovered a small lump
on my neck
below my ear, behind my jaw. It's only on the left side, and it's very hard. At the end of October, I went to the health center at my law school for an on and off fever, weight loss, and other miscellaneous symptoms. They did the mono blood test and I was positive. I seemed to get through it pretty easily, though my throat was miserable for 2 weeks or so and I was exhausted for those two weeks as well.