Will cracking my knuckles lead to serious problems in the future?

ok i constantly crack my knuckles my wrists, my neck and my back. its sort of like become an addiction becuase i get this uneasy feeling (like an itch that needs scratching) where i cant resist and i crack away. (just cracked em.) now regarding to my back, when i stand or walk for a long time my back starts to hurt and just by me bending down and reaching for my shoes I hear my back crack. the discomfort of standing too long worries me and im not sure if its normal or not. i know i should stop cracking everything but it feels so damn good!

by the way. HOW DO I STOP ANYWAYS? like a drug? cold turkey?