For five weeks now, I, a 23 male have had swollen (golf ball size) /sore lymph nodes all over, low BP 90/60, fainting diarrhea fatigue but blood tests normal. Given Bactrim, but had to go to ER with allergic reaction. Given a different antibiotic but it didn t help. I was tested for STDs, mononucleosis, and strep. Now I have severe pain in my feet and insomnia.