About just shy of 3 weeks ago i was with a girl who gave me a hand-job and blow-job. Before that even happened there was lots of rubbing on my penis like friction between pants, and during the hand-job/blow-job she was very rough. Mid blow-job the head became super sensitive and I ultimately did not orgasm at all. Is this because of the intense friction and her being very rough (almost yanking down on my penis) and for what its worth I am un-circumcised if that helps. Days after the head is very sensitive but only when I rub on it...touching does not bother it at all...and weeks after it isnt AS bad but it is still sensitive to rub against the head when exposed. Is this some sort of STD or am I being paranoid?

I appreciate all your help and what you guys do to provide for the online community and i look forward to your diagnoses.