"- on my motorbike I don't feel cold. I know my hands are cold, but they don't feel it like they did last Winter. It was 4 degs C today, and I didn't realise that at all."
This is one of the most obvious difference in me too, vs my friends; I used to be cold to the bone before iodine, now I can feel cold on the outside when low temperature, but not inside. I even had an ice-bading the other day, what a kick!