I know everyone hears their joints crack once in a while, however, mine is very frequent. my arms, hands, legs and most area where the joints are crack very frequently. I would like to ask if anyone out there knows the reason? as it is not pain, i do not see the need to consult a doc. Pls advise. TIA (IMG:http://flowerpod.com.sg/forums/style_emoticons/default/flower.gif)