17 and ED for over a year

Hey well i'll try to keep this easy to understand
Im 17 and have been suffering with erection problems for just over a year now

I cant get an erection when i masturbate , i can get around Semi erect
I cant get an erection with my girlfriend for sexual intercourse
I dont wake up with a full erection
Watching pornographic movies dosn't do anything
Viagra had little effect...Gave me an erection but it lasted around 10 minutes then wouldnt come back , why ?
My hormone levels have been checked and are fine
I pre-*** a lot when "playing around" with girlfriend , this then instantly seems to take away the LITTLE bit of an erection i get
I dont drink alcohol
I dont take drugs/medication
I am not overweight

Does anybody have any suggestions what could be wrong please?

Many thanks in advance

[Janice M Epp, PhD]

Hi Benny.

The fact that you aren't getting erections at any time indicates that there's a physiological cause. In addition, it's not unusual that a minor physical condition can affect erection (illness, etc.), and this creates anxiety and worry, leading to a viscious circle: the more you worry, the more your penis becomes uncooperative.

That said, this forum is for discussing emotional/psychological issues relating to erection concerns. You need more information about any physiological factors that may be contributing to this. I suggest you see a urologist, who can test for any possible medical conditions. Best of luck to you. Dr. J