Hello, I'm a 18 year old male who's been experiencing erectile dysfunction for well over a year and a half. I feel like I am going to go insane if I don't find out what is wrong for me, I'm far too young to be experiencing ED. I have gone to doctors but they think that it's all just in my head but it isn't, I know it isn't because I haven't gotten an erection without rubbing my penis in over a year and I don't wake up with erections anymore. Around a year and a half ago when my ED started I got a severe sunburn on my entire body (except for where I was wearing shorts)could this be related to my problem somehow? One day I felt a really strange feeling in my penis just after masturbating, my penis felt like it fell asleep and it went completely numb, it also hurt a little bit(could this be related somehow?). A week or two later I noticed some lines on my penis head, my penis head used to be extremely smooth and now it's rough and has all these lines on it, it actually looks very similar to an cicumcised penis head because it's really dry looking and it has tiny cracks on it(I'm uncircumcised). Every month or so that numb feeling comes back and usually only when I'm sitting. Does a numb penis mean that there is some sort of nerve damage? Do you think my problem is reversible? I am very very scared and I don't want to live my whole life like this, I want to get a girlfriend and start a family but I have put off getting a girlfriend since my problem started, could someone please help me out? Thanks.