question: Ive had enlarged lymph nodes under my jaw for a year.  Now I have more enlarged lymph nodes above my collarbone on both sides, plus I believe I have a large on under my left armpit.  I frequently run low-grade (100 degrees F), and am very fatigued a lot of the time, with much sleep required.  I did get a FNA on one of the lymph nodes under my neck aroun 8 months ago, and it came back negative.  Should I worry about these additional ones?  Thank you.