I just don't understand it and I really need some suport. Tonight my gf and I were going to have sex but I couldn't get it up. It's strange because I can get turned on with effort but my penis just doesn't feel the same way. Rather than telling her I couldn't get it up tonight though, I just pretended that I was sick so we couldn't have sex. I feel very guilty for doing so, and less of a man consequently and I just need to vent. The gf and I were screwing like animals about 4x per week 2-4 months ago. Recently, like over the last month I've noticed that it is VERY hard for me to get it up...we can't even have sex! It is not her because I have the same feelings for her that I always have had. Something just happened and I don't know what. Do Propecia sexual sides hit you late in the game?...been on it for 2 years now. Not much of a libido either but she's horny as hell. I feel like I can't satisfy her and I told her that but she says I do. aww cute, bla bla. Anyway, I've tried L-arginine 2x per day for over a month...not much of any improvement in libido, ginko biloba 2x per day...don't notice a thing, and now Asian Ginseng, which is supposed to help with ED(started about a week ago) 2 pills per day...noticed slight increase in hardness of the rare full erections I get and I am now very hopeful. I hate even saying ED but that's what it feels like to me. I am considering going off of Propecia but I like having my NW2 hair. I'm freaked out if I stop because my dad went bald in his early to mid twenties and I'm almost 21 <sucks I have these problems at a young age. I do not want to go bald, call me vain or conceited but I want to keep my hair. Any suggestions on what I should do or any input at all from anyone?