hi doc, i am male 29 from india, past 2 months i am facing a problem during having sexual intercourse, i tend to loose my erection before i climax, but when i mastrubate i am able to hold the erection until i climax, this is too much frustrating, i am not able to find a solution to this please help me. and 1 more thing while having intercourse i am taking a long time to climax this is also for past 2 months