Time Lords don't get sick from silly things like being drenched in water or standing in freezing temperatures; if anything if it gets too cold, which about -200 below for someone; he'll regenerate.

Ten does notice how the other is touching the railing in a particular spot. A spot that only him and The Tardis know - about.

Is that who you are? Would explain opening the Tardis door properly.
None of him ever have and isn't going to start now.

Rather than answering the question; goes to careful feel the surface of her mind with his as he does so is looking more deeply into those brown eyes that match his own; maybe even more so.

"Sexy - is that you?"