I hurt my back a while ago, probably 6-8 weeks ago. I attended the chiropractor for a time and it seems fine now. I don't get any pain but quite often, if I've been sitting still for a while (using the laptop for example) and arch my back for a stretch, a series of cracks sound somewhere down my lower back. Also, sometime I get this weird feeling that my back just isn't comfortable and feel the urge to stretch it or something. So if I press two fists against my mid back and push, i get the cracking again. Then it stops feeling uncomforable for a while.

I'm not sure what is going on here. o.O Any help is appreciated.