Most the time my insertions on my arm are trouble free but there have been a few times after insertion that I feel a very slight pain if I move my arm a certain way. Is this what hitting blood vessel is like or is it something different? Both times after a few hours I ended up removing the sensor and putting a new one on. There is no blood when I remove them so maybe I’m just hitting a nerve? Would it go away if I kept it on for a day or two?