I am in my 6th week of a Winny/Test Cyp cycle. I am getting good results (goal to cut with minimal size gain). I have gained a total of 8-9 lbs but now when I run, my lower back tightens up and if I continue, the pain/cramping goes into my legs. Normally I run 2-3 miles 2-3 times a week, along with my weight training but now I'm lucky to make it 1 mile. Any thoughts? I'm 6'2, 208lb guessing 6-8% bf. This only happens when I'm on a cycle.