I found that the auto injector was much worse, pain-wise, than the regular syringe. Does Humira have a choice? In any case, once you get more used to it, your apprehension will likely pass. I never used the stomach, though, only legs. Did find that moving slightly off center--towards the outer side of the thigh (if a cross section of thigh--would be around 11 o'clock)--this was MUCH less painful that doing it immediately on front of thigh. You'll find it easier as time goes by.