Hi! I'm a 30 year old woman myself, going through something similar...I love my husband, he loves me, but the sex...what sex! Nothing kills your self esteem like knowing that you can't PAY your husband to make love to you lol!!! From what I've read, the OTC's don't work so well and can cause the body to build up a resistance that decreases his ability to achieve of maintain a natural erection, and at the same time cause him to respond less and less to the OTC's. It sucks. Sorry I didn't have anything more encouraging to say. You said that he's a little over weight, go to your local drug store and get a blood glucose monitoring kit. If he has high blood sugar, it could be a sign of diabetes, and that could be the root of your problem-if so, diest and exercise could set it all straight!