sorry if I sound condescending or like a Health and safety nut...
Very good points and you are right I probably have been overdoing it a bit this week but I'm not planning on making a habit out of it.
A different condition but I did have carpel tunnel syndrome (pins and needles in hands) many years ago brought on by cycling from John O'Groats to Lands End. Two weeks cycling all day wearing cheap gloves (I wasn't really into cycling, just fancied a challenge) was enough to crush the nerves against handlebars - lasted 6 months so it is easy to damage those nerves.
No need to apologise for sounding like a health and safety nut - until recently I was doing voluntary H&S training and audit work for a charity so definitely a case of "do as I say not as I do"!