My urehtral opening has been getting longer lately, and it feels very irritated. I also have an odd feeling when i get an erection, not exactly painful but it worries me. I saw a urologist and he said that my "something" (started with an S, the guy had an accent i couldn't understand too clearly) in the urethra was small and that was why my urine was coming out a bit forced. He didn't say anything about the opening getting longer or the irritation (yes, I'm going to get a different doc). It's getting longer going towards the frenelum, if it keeps going I'm worried that it'll open all the way down (like a meatotomy) which i want to avoid at all costs. The doc prescribed Bacitracin ointment, which eased the irritation a bit but it still looks pretty bad.

Can anybody tell me what this is? I haven't found any answers online and i don't know how long it'll be til I see another urologist. I'm 19, still a virgin so it's not an STD, tested negative for infections as well. Please help!! (This has been going on for a bit over 2 weeks by now)