When I was on 800 a week, when I got to about week 8, I had a decrease in my sex drive.
Now, if my lady was to take her top off and sit on my lap... WHAM!! No problem.
But my normal feeling of sexual frustration and all of that definately dropped.
I never had a problem getting it up or anything.
But my motivation was gone, unless she got me going.
After the cycle was done... back to normal.
I hope it's not any worse with 1200/wk.