Hello Doctor,
I am 23 years old and I used to have healthy erection with my partner over a month back. For a month now I have not been able to get erection. I have tried masturbating for over a while and had got some erection. When I tried after 3 or 4 days, but I was not able to get the erection. Since then I have tried both porn and manual stimulation, but still no erection. I have no problem with ejaculation even with my limp penis. I have had nocturnal emission for few times during this period and woken up with hard penis quite few time and I am still virgin. Can you tell me what is wrong with me and how can this happen in few days time?