Although i have no idea about what could be causing this just wanted to say i hope you get it sorted, sounds like a terrible situation to be in.
Married couples use to enjoy the sex life to its fullest previously but because of the erectile dysfunction, the marriages are unsuccessful. Men suffering from erectile dysfunction feel depressed and this takes the toll on his relationships with the partner. The main problem is that, man reaches orgasm within 2 to 3 minutes; whereas a woman takes at least 15 minutes time to achieve the same. Thus, man has to hold his erection for the 10 to 15 minutes, but he fails and the sexual encounter becomes unsatisfactory for the women.