I had sex with a spermicidal condom. It was early in the morning and believe it was used inside-out. During intercourse I experienced an intense burning sensation in the tip of my penis. After intercourse it stung very bad when urinating. The stinging while urinating had gone away however there is still a burning sensation and an urge to constantly urinate. Could this be from the spermicide or possibly an STD? I originally didn't think it was an STD as the burning and pain happened immediately however I am still having complications almost 4 days later...