I'm 20, have never had sex but have been masturbating once a day for many years. In the past four months I find it hard to keep an erection for over 10 or even 5 seconds masturbating. I can get fully hard but it goes away easily, though not all the way, and then back up again and that goes over and over. Sometimes I cannot get fully hard. This all happens with good stimulation. (both visually and physically) when I ejaculate it's not even fully erect, and my penis gets soft as soon as I ejaculate and I get less pleasure from ejaculation. My glans feels numb most of the time. It's not very sensitive to touching.
My morning erections are weaker than they used to be, if it's not my wrong perception. I started paying attention to that only after I realized I had erection problems. Often there's no morning erection. Also, there seems to be a cycle the past 2 years. In some days I have better sensation in my penis and much better erections. They go away after 2 or 3 days, though. It’s still happening after I had erection problems. Only in these days are my erections satisfactory. I can last 15 minutes when masturbating. This is so weird.
I've seen 2 doctors and they said it was all in my head, citing the weird cycle. I can't disagree more. The sensation of my penis is just not right. When those good days come when my penis is normal, the sensation is much better and getting and sustaining a woodie are easily done. I'm not buying that bs that i'm more relaxed those days(as the docs put it). I need treatment but they said nothing could be done.
I'm getting depressed... I'll be grateful my whole life to anyone who can help.