No I don't carry any ID on me haven't done so for a long time...
I find that bracelets etc are a false security...
If somebody doesn't click, my insulin pump, blood glucose meter, test strips etc and don't click that I have an medical condition they are very unlikely to start looking for medical Alert bracelets etc...
Most of the general public aren't aware of Medical Alert jewellery in the first place, so first thing they do is rummage through bags, handbags and pockets etc... Looking for purses, wallets and mobile phones to find out who you are, and somebody to contact...
So I have ICE, T1 diabetic programmed into my mobile with emergency numbers attached, and generally have my driving licence on me as well...