hi, im a 27 yr old male, 2 nights ago i had protected sex with a girl i just met, last night i started feeling a burning sensation in my penis, not when urinating or ejaculating, only when im sitting down comfortably. looking back, i realise the girls bedroom was not very clean and god knows who had been on that bed before me without changing the bedsheets, i also feel a slight tingling feeling in my behind. really worried that ive caught something as this girl admitted she has many sexual partners. oral was also with a condom but you cant avoid body parts touching in some sexual positions. i would really appreciate any insight on this. thanks in advance