So I am about done with my first cycle of Masteron/ test p. I have gained about 17lbs in 6 weeks. While i was on barely ran now since I am starting to cut i have started running again. I cannot drag myself down the road 1 mile w/o my back hurting. I have stopped lifting heavy and go to high reps. This is somewhat of a problem for me since I am in military and I will be going to a school soon I ll need to be able to run pain free. Advice?