This morning i went to shoot up my normal dosage of 250 mg Test E. I go through my normal routine, but heres what happen: I aspirate and see bubbles so I inject, after I pull out the blood just oozes out and there is pain. This only is only my third time injecting, and the other two times there is no blood and no pain, but some soreness the next three days following. Should I be worried or is this normal?