I am not able to sustain my erection. it's been 6 months n no intercourse .i do hv good nocturnal erections. no diabetes or hgh ldl . mldfil din wrk.

Answered Yourself: Nocturnal behavior demonstrates. Like all body function, mind/brain control & situation dominant. Fear, rejection, humiliation, anger, hatred all likely to powerfully change behavior, for better or worse. Dm routinely missed, optimal hb1c ≤5.0%, called dm after ≥6.5%. Ldl rarely measured, usually ldl-c estimated: wrong issue & commonly very misleading. See my answers healthtap & get better help.

Erections: Despite what the previous doctor said, and in plain english, this appears to be a problem of your mind and not your body. Erections are 50% more from the mind and less than 50% about the body. Nocturnal erections prove your body is fine. It is the anxiety and worry about erections often that get in their way. You've got to find a way to get past this thinking problem. Perhaps a urologist.