Hi, I am an 18 yr old male, for about a week and a half ive had a stinging sensation while peeing, it feels like there might be a cut in my urethra or something. It feels like I am peeing glass, the sensation is not bad at all if i pee slowly, but when i pee fast it is pretty bad, but not unbearable. This makes me think that it is a cut. Also, the hole of my penis is a little puffy and red, it was worse, its slowly getting back to normal. But the stinging while peeing is not getting better, or worse. It stings more when i sit down, rather than standing. When i get an erection it stings like shards of glass are in my urethra when i squeeze it, push it down, or flex it. But after about a minute of pain, it slowly goes away and i can squeeze it and push it and everything like normal. I dont think its a UTI because i dont have urges to pee all the time when i just urinated. When im just hanging around and not doing anything its normal, i can touch it and everything with no pain. The head of my penis is getting pretty irritated i think from brushing against my boxers too, this has never happened, i dont know what to do. please help. thank you