I've been experiencing this. I think like PureChance is saying above, it could be E2 or something else. After you've been on Androgel for awhile and you get regular blood tests, it may be easier to troubleshoot what the issue is. I feel OK on Androgel, and can function sexually pretty well, but it hasn't done a lot for my libido or to give me many spontaneous erections when the hot ladies walk by, etc... Sometimes beig on TRT feels like you are spinning plates in the circus. You have to keep going back down the line checking everything to make sure it's dialed in!