I started self injections of 50mg test (200mg/ml, so .25ml) 2x a week last week. I am having a slight issue completely emptying the syringe. I load with a 22ga needle (pharmacy didn't have the 18ga in stock) and change the needle to a 29ga 1/2" needle after loaded. I'm doing sub-q injections, and have injected in my abdomen, upper back love handle, and thigh. Each time, I press the plunger fully, but there is a still a little bit left in the "nose" of the syringe when I pull it out. Doctors office suggested keeping an air bubble near the plunger, but I've heard you do not want to inject any air, and I couldn't get an air bubble today anyway. Tried pulling plunger out to .3ml with needle pointed up then turning over and no bubbles. Tapped syringe, nothing. That was quite perplexing. What am I doing wrong here? Too quick, too slow? I don't want to continue wasting it. Thanks guys.