I can totally relate. I think my worsening RSI is a huge factor. It could be TMS (http://www.tmswiki.org/ppd/An_Introduction_to_TMS) not just regular RSI. Fuck if I know. Additional stress doesn't help, either at work or outside of work. The worker's comp people don't want to help. It seems like they intentionally want to see people suffer. Honestly, I'm in the same boat and I'm not sure what to do. I have the option of taking it easy at work but not everyone has that. I've been taking it very easy and trying not to work in pain but it only goes so far. I've been trying to do activities outside of work as much as possible and build a life for myself that doesn't involve work or computers or any of this shit. It's not easy.

Sleep, good nutrition, and exercise are vital. Sleep is, as some others here say, the most important. But it's also the hardest to fix. The sleep doctors are morons and it racks up incredible bills. Their suggestion, "go camping for a weekend" to treat a lifetime of delayed sleep phase. Honestly, sometimes I want to strangle these people. Most of them are clearly doing this only for the money. If you're in the US, the healthcare profession will fuck you. They will fuck you over really bad and they will enjoy fucking you over. Many doctors and personnel revel in the cruelty and power they have over patients, especially patients that have no alternatives (like with worker's comp issues). Same with RSI. You're really on your own. There is very little to no help, but there will be many bills (definitely get on worker's comp) for useless services. Really, you're on your own. I try not to let this dissuade me and go from moron to moron trying to get better. Sometimes I find someone that helps. Sometimes I just have to deal with shit on my own. I suggest you treat that and sleep ASAP. Get on the record. It'll also make it much harder for your company to fire you because, let's face it, they are the cause of the problems. Or if they do, you can sue them.