Gone soft

Sofa time for so long has made me into a softarse pansypants.
On Monday I got blisters on my feet from being up and about so much. I was wearing flat shoes.
Why then do they hurt less today when I have worn heels?

And why does the fact that I wore a skirt and nice shoes cause such consternation?

its only because my trousers don't fit. Which is annoying after 5 weeks of gym, swim and watching my calorie intake. No movement of weight at all. Very annoying.