I'm A 56 Yr Old Man In Very Good Health.

I'm a 56 yr old man in very good health. 5 ft 11 in tall and weigh 169 lbs. In the past few months, during sexual intercourse with my wife, the time it has taken me to reach sexual release has increased significantly. However, I have no problem obtaining an erection and maintaining it. I am not on any medication. I use alcohol once a week, no beer but wine or mixed drink. I am not a smoker. I have hypoglycemia.