hi. I have a pain in my inner arm where the elbow is located but on the opposite site of my elbow where nurses draw blood. it hurts so bad when I straighten out my arm, lift my son and even doing things such as turning doorknobs. I am also a meth iv user. I drew bood so I don t think it was a miss although it slightly had a sting which was not bothersome or the sting and burning sensation of a miss. this is the same area ive always went but I can no longer hit the same spot so I moved to a different spot which is just right below and to the right of my normal spot. the vein was very shallow and the tip of the needle is as far I could go to draw blood back. I did not have this pain right after the injection but hours later. I woke up this morning with it having more pain. is this something I should keep a hot or a cold compress on and will it heal on its owm?