I am a 26 year old male who recently had unprotected sex with a girl I met while on vacation. Within 3 days, I noticed 3-4 bumps behind my knee on the right side of my body which were extremely painful. Shortly after, I noticed that my lymph nodes in my groin area (also on my right side) were swollen. The following day I noticed a small patch of bumps on my behind (also the right side), which haven't actually turned into red bumps, mostly beneath the skin but painful. I scheduled an appointment with a doctor, who put me on antibiotics, and said the bumps behind my knee were probably bug bites. However, I am 90% positive all of these symptoms are related as they all came at once, and i've never had a "bug bite" of this nature. The bumps behind my knee feel like they have something swollen under the skin, very painful to touch, and scabbed over within a few days. The ones on my behind are pretty much in the same state they have always been.
I have been taking the antibiotics for about 4 days now and have noticed that the lymph nodes have gone down a bit, but no change in the red bumps (he wasn't treating me for those as he thought they were bug bites). After searching all over the internet I wasn't able to find one case of someone with herpes behind the knee, but I have a feeling whatever this is it is as a result of having unprotected sex with this female.
I can't even sleep I have myself so nervous. Does anyone have any ideas as to what this could be? Any input would be greatly appreciated. I think I am going to schedule another doctors appointment.. :(