I am a 23 year old college student who has lifted for bulk since I was in high school for football. I dont want to get any bigger if anything I want more of a defined shape. I am contemplating on using either winstrol or clembuterol. Currently I am about 6'2 235lbs. My main focus is losing my beer belly and getting more definition to my muscle structure. What are the side effects of both? Would I have to take any other subtances along with it like a estrogen blocker or any other suppliments?