This really does not sound like genital herpes. If it was herpes and your pain was due to herpes, we would expect the rash to evolve by now to form typical blisters and ulcers. Furthermore, HSV involving the scrotum is quite rare. As to what might be casuing your discomofort, sometimes after an exposure that, in retrospect, one wishes they had not had, persons tend to examine themselves and be far more attuned to genital sensations than in periods when they are not concerned. This in turns leads to noticing what turn out to be normal sensations that might have been not noticed or ignored at other times. The scrotum and tesicles are locations where this occurs most commonly. Perhaps this was a contributor to your situation. Hope this helps. EWH