I just found blood in my spit after brushing my teeth. It s from somewhere in the back of my throat. I have had swollen lymph nodes on my upper neck, just under my jaw for at least the past 10 months. About five days ago, a small but hard lump appeared on top of one of the swollen nodes on the right side of my neck, just under my chin. I have also been getting frequent headaches over the past week. I am a 26-year-old Caucasian male. I don t drink or smoke, and I never have. I am 5 7 , and last I checked, I weighed roughly 160 lbs.