Well, if you're fairly lean, it should hit IM in your shoulders or quads.
Have you exclusively done SubQ since you started TRT?
It's possible you're a poor responder to SubQ. I'd almost certainly give IM a shot, done right, it's fairly painless. Nelson's video is excellent, in fact I like it the most, no screwing around he just injects and that's it. Defy has videos, but they're not self injection.
Depends, what did your pre TRT labs look like?
