I ve had a girlfriend for 2 months now and she was tested negative for diseases. We have had unprotected sex many times. But I masturbated two days in a row and got a burn or a blister near the head. And I told her about it and we still had sex again unprotected. Literally minutes after we had sex I noticed another blister on my shaft so I was just thinking it was a friction blister. So when I got home that night I noticed a swolen lump on my groin area and it s pretty sore when pressed on. It s been a week now and both blisters haven t healed yet nor have my lump. Do I have herpes or anything?