I have taken several test boosters, like Animal stak, TestFreak, and many ZMAs (usually I took 2 weeks off in between). Recently I noticed a significant decrease in sexual drive, which also seems to give an erection problem. I have talked to the doctors and did blood test, everything just looks fine. Test level is within normal range, but sorta on the lower end tho. I do feel my body chemistry is somehow fucked up ... Is there anyway to reverse this?