Hi, I broke my left hand/ wrist last sunday and have had it in a cast since last tuesday...the pain has still not eased and i am unable to use my left hand still, however it is the pain that is most severe. Do i need to go back to the hospital? Also the cast is getting a little bit loose so is this normal or do i need a new one putting on? Could this also be the reason i am still in a lot of pain? thanks.