I'm type 2 diabetic and overweight and have not had any erection problems until this year when during foreplay I'd be as hard as a rock, but go soft just before insertion... my wife has been understanding, but it has been frustrating. My Doctor said that erection problems are more common than people think - especially for people over 40 and she could prescribe a generic 'Cialis' if need be but I was too embarrassed to take up the offer.