So for the last week ive had the red rash covering the bottom half of my penis head. It's began hurting and itching on and off. I've contacted my doctor and she hasn't been able to diagnose it. Lately i have been urinating a bit more frequently, my stomach had been hurting constantly, and i have had impotence (I can get an erection but it doesnt last for very long). I have only had sex once and my partner is clean, and has never had a yeast infection.

The symptoms look like type 2 diabetes and balanitis but i still dont know.