Hi, i'm a 20 year old guy that had unprotected oral (no semen or blood was transferred) with another man almost three months ago (may 10) and protected anal. I've had a swollen lymph node in my neck that has been increasing and decreasing in size ever since about a week after my sexual encounter due to me catching strep throat from a friend. I'm not sure if it's still swollen because of the strep throat or because of the possibility of me having HIV. I had a blood test done 5 weeks after my encounter and it came back negative, i am now recently (the past week) have been experiencing what I believe to be shingles (first began as burning, irritated skin on thigh and then recently around my armpits and back, no rash whatsoever yet though). Aside from these symptoms i have been feeling some fatigue and diarrhea. I've been very stressed out the past 3 months and i have been diagnosed with generalised anxiety disorder since late last year. I'm wondering what my chances testing positive or negative are at, considering i already tested negative after the 28 day period