My penis does not stand. When I am with my wife, no sensation or no feeling of sex comes. Even since last 4 month, I never masturbated. Also no night fall or self discharge since last 4 month. I am newly married and suffering from diabetes. I have undergone check up of testosterone level and found 310. When I try to masturbate, penis stands after some more time. One more thing, when I fantasy with some other girl, it stands. But in normal cases, I do not have feeling of sex in my routing life.