Sometimes my blood is bubbling, I come home from work and fuck my wife then jerk off 3-4 times, several days in a row. Sometimes I'll go a week with no sex drive at all. Since I started working out in November, I've noticed changes like this. Is there a reason for this? is there something I can do, or take, to keep my sex drive crazy like it gets some times? every once in a while, I wont even be able to get it up, I feel like I'm dead from the waist down, but then the next day I'm ready for a sexithon... It's been bugging me lately, what do you guys have to say about it?