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. Recently I've been afraid I was relapsing or something. For the last few weeks, my appetite has diminished again and I've lost more weight, and I've been really tired. I've had random days where I have a fever, then the next day I'm fine again. I don't have a sore throat at all, however. I didn't have this lump at all, either, but I'm not sure when exactly I got it. I just noticed it today when rubbing a stiff neck. Am I getting mono again or could this be something else? I want to get to the doctor as soon as possible, but I've only been in my current location for about 6 months and have to find a doctor around, as well as make time during law school.