Chafing.
No-one ever told me about this. Its painful and humiliating. It seems it because my pants are getting loose in the crotch, so skin is able to rub together. So that is a good thing.
I know it won't happen forever, but it sucks, I walk so much all day now, so by the end of the night I am in agony. I know there isn't much I can do about it right now, as I don't want to keep buying new pants.

Anyone else got anything like this?