[auganov]

Right which is why you can read about physically unexplainable chronic pain conditions at large. It doesn't mean that people don't have RSIs, TMJ or whatever. There's simply no evidence that these are reliably linked to some specific physical aliment. There is no reason to worry about developing these things. That you feel discomfort in your fingers doens't mean you're developing an RSI. Just like a little disordered thinking doesn't mean you're developing schizophrenia.

Just the sheer understanding that fingers/wrists of an RSI sufferer are no different from these of non-sufferers helps many people resolve or greatly reduce their pain.

> Another one, skinny, does sports, sits on a pilates ball at work, uses standing table, stretching, and still has back problems.

And if they are a chronic pain sufferer from a similarly weird (or untreatable) condition I would greatly recommend looking beyond the physical explanation of their pain.