[ianv]

Ian I can't believe you ever weighed as much as 55.6 kg !

Big bones!

Moose, do you feel ill or under the weather? if so go see someone. If you just feel lighter and stronger then, get in and take advantage  Caveat: I probably have a higher threshold to being shocked by low weight than most people.

[tj]

Bizarrely I've lost around 6kg in around a month for no reason I can fathom other than stress at work.

Stress can burn a lot of calories, at one point something similar happened to me, I wouldn't worry.

I'm sure this is well-meaning, but as I'm sure Moose is well-aware, all medical advice on t'interweb is to be regarded as suspicious at best. Can I just echo Oldmanmatt et al and suggest you get yourself checked out. I work in healthcare, BTW.