My wife got diagnosed with a UTI the other day. Since then I've noticed that the tip of my penus was slightly sensitive after we had sex. I really wasn't paying attention and finally looked at it. I have a little bit of redness on the top of the head and it's a LITTLE sensitive when it rubs on my underwear. No other symptoms. Anyone know what the hell is going on? Possible yeast infection coming on?? Never had this and have been monagamous for 12 years.