I don't gauge the numbness or tingling whether it is good or bad GH. It depends on what else I am doing that makes the difference. If you are not managing your blood sugar and electrolytes well, you will get tingling and numbness even on the lowest doses. When I first started and didn't know what I was doing, it would happen on just .25 mg of norditropin. Once I got the other things under control, I could run 3 mg with no issues at all. I experienced it again post show, I was not ready to push up and did not have everything under control. I went up to 2 mg and immediately had sides. Pulled it out, got everything under control and now running 6 mg, no issues.