Ouch. I 've had RSI issues from computer work too. And I’m also in the process of improving my acoustics a bit, ghetto style, following this: http://mixedbymarcmozart.com/2014/11/06/room-acoustics-ghetto-style/
I just dumped 2 rockwool packs in free corners of my room, one under my desk and one on top of the shelves, and yes, it has a bit of effect tightening up the bottom end. I have no ambition to turn my living room into the perfect sound studio though. Just doing some easy basics to attenuate the worst issues.