HI Thank for asking to HCM I really appreciate your concern looking to the history given here as long as your age is concern let me tell you something about the erection, actually the impulses of erection are coming from the cortex area of the brain and this impulses generated due the stimuli and that is, visual, thinking, touch that is erotic and related with the sexual arousal this function can be disturb due to the anxiety and depression, emotional stress, and this is not the disease that can be treated here you need to keep the anxiety depression and stress at the lower side, take care and have a nice day.