Popping joints and senovial fluid

[fredtoast]

All joking aside I used to have an ankle that would often make a popping/clicking sound just from regular walking.  There was no pain involved.  But then for some reason it just stopped.

My wife would have me crack her back.  She would cross her arms across her chest and I would wrap my arms around her from behind and lift her up.  It sounded like her whole spine was breaking to pieces, but she said it never hurt.  In fact it loosened her up.