sex life with my wife is not too frequent, and then one night after heavy drinking we had rough/angry, unprotected, sex which led to anal sex, which is very rare. the next day I felt a mild discomfort while urinating. It has gradually dissapated to a very slight discomfort. but I'm still wondering why it occured, was it a result of the rough sex or the anal sex? should i see my doctor? should i be worried?