I also have Bart and there are days that my feet hurt like crazy.
It's usually the bottoms. I work on my feet all day so when the end of the day comes I can barely walk. Of course the ankles don't help much, the hurt like most of my joints.
But I find that if I keep on trucking, lol, I can get thru the day but, boy oh boy, I pay for it at night.
Soak them and massaging help a lot.