So I am currently taking some liquid letro to clear up some gyno. Have small lumps under my nips and hurts real bad. I took letro before and had great results, took for about a month. I took (30ml 2.5mg/ml bottle) from .2 and increased up to 1 ml and stayed on 1ml a day until my issues cleared and then decreased back down to .2 and went on Novedex for 2 weeks. Well everything was good but it flared back up after taking another pro hormone. So here I am back on letro. I been on it for about 4 weeks and the puffiness and the pain have gone down but its still present. How long can you take letro for? Is it possible to build a resistance to it? I have read that people get joint pain and low sex drive. I started to get some pain in my one hand (not sure if it's related) and as for my sex drive its still through the roof. Also curious if its bad to take a test booster supplement while I am on letro?