ive been taking a massive amount of diphenhydramine for sleep for a few years now (200-400mg) would it effect either my growth hormone levels or testosterone levels?

a lot of anecdotal evidence shows that even in moderate doses it can adversely affect testosterone production... google rocks.
-Saving random peoples' nuts, one pair at at time... PCT info:
http://anabolicminds.com/forum/steroids/192992-pct-what-why.html
-Are you really ready for a cycle? Read this link and be honest:
http://anabolicminds.com/forum/steroids/191120-checklist-before-thinking.html
*I am not a medical expert, my opinions are not professional, and I strongly suggest doing research of your own.*