Hi,
I am 19 years old and several months ago had unprotected sex with a girl i met. i did not think this through and normally do not do things like that. i got tested for hiv and it came back negative, but after intercourse the next few days the head of my penis was dry and sore. and ever since that encounter it has been sensitive to the touch. nothing pain wise or anything just more sensitive. is there any stds that can lead to this? thanks for your time