Running a contest prep. 600mg npp with 350 mast p and 150 test. Felt great the first couple weeks. I switched out the mast p with 800mg primo and I'm getting some serious lethargy. Been about 10 days now on the primo. Any ideas If its the primo or not? I was previously running 700mg test E with 350 mast. Had lethargy on that as well. I'm using 20mg nolva and 25mg aromasin ED and .5mg caber 3xweek