I just started Trt again. The first time with my Reg Doctor didn't go very well. I did respond to my first injection pretty quick though. My first time I was on top of the world for about 3 days and then crashed and my nipples were in fire. It was 100 mg injection. Now I am seeing an endocrine doc. He has me on 100 mg testosterone per week. Did my first inject 3 days ago and haven't really notice a difference yet. In fact I might be a little run down more than normal. Does that seem strange that I would respond different this go around? Any thoughts would be greatly appreciated.