I am on my second cycle...my first was testosterone enanthate and now im on sustaplex 325. Im just wondering does anyone else feel the steroid going threw there body? Or do you just inject and feel nothing ever again. I find my heart rate can rise sometimes and i can feel it almost going threw my muscles in certain places. Some feeling in my head aswelll. Just let me know your personal feelings on what YOU feel. I just dont want to proceed with my cycle if these feelings are abnormal. Thanks!