hi , doctor , I have sexuality problem , I think it erectile dysfunction, my penis not stands automatically in day time , its stand when i take the bed and masturbate it , and also in morning times, but not stands in love making with a girl,also not erect when i stand up and masturbate it never erect during my standing times,i think this is problem create since last four years, i am 23 years old, 60 kg weight. 5,10 inch my height, my penis size is 6 inches. please reply me what should i do for resolve it , my email id is YYYY@YYYY