Hello...I m male, gay, age 26. I ve been sexually active lately (oral only). I ve had slight irritation after I urinate. It started as a minor sting (not very painful...just an odd sensation) and it s mildly progressed into a slight itch after a few days, and my meatus has a slight red hue. I have no other symptoms.....but I m wondering if I should be concerned about chlamydia , or if this is likely a UTI?