i started getting pains in my my writing hand around 1700 characters in (i'm at 1800 now in the 6th edition), so I'm not gonna let a little cramping stop me. I think it came from writing with my fingers rather than shoulder/forearm. the pain first surfaced when I was playing drums in my band. I think all the extra writing so much for RTK made my hand tense, because I never had this pain from drumming in the 19 years I've been playing, and I drum with both hands. The aformentioned link on RSI was interesting. I have really tense muscles no matter how much I stretch, as I'm kind of a wirey, thin and active guy. I already scheduled a deep tissue massage, so hopefully this will help.
I found these websites today that have been helping me tremendously already:
those are for pen writing. The key seems to be to write from your shoulder, relax and keep good posture. I bought a fountain pen to alleviate finger pressure, but you can use a gel pen for less money. I had the $5 'preppy' fountain pen but the cheap plastic cap broke, so i got a Kaweco fountain pen from jetpens.com (kinokuniya was too expensive for me as a newbie to fountain pens).
I am using a brush pen to write kanji, but usually only write one kanji per review or trace it in my mind or with my finger, and I write it once or thrice when I am making a new story, so really, I think the pain for me was coming from writing the stories. Then again, it could be the complexity and lack of familiarity with the kanji that is doing it. If anyone finds good links on proper posture and writing grips, etc. especially for brush-pens or articles specific to kanji, do tell.
I also switched the mouse on my work computer to my weaker hand. It's slow goin', but not as slow as, say, learning to write kanji with your weaker hand, which was my goal when I set out to learn Japanese, but it didn't really pan out.
Edited: 2012-03-04, 12:53 pm