Hi, i had unprotected oral sex with a girl 6 months ago, after 3 months i had a cold and headaches, now it has been 6 months the tip of my penis started being red from time to time, i also notice small extra skin on the tip of my penis, very hard to notice, but it is there. Is that a possible STD, and can it take up to 6 months for such symptoms?
Thank you