I just started a cycle that among other things involves clen. Having sex with the wife the other day and I felt the worst abdominal cramp I have ever felt in my life! She thought I came, only to find me on the floor stretching out my mid-section to alleviate the cramp. I started taking taurine, but how much taurine do you guys take a day? I'm taking 80mcg of clen/day.