keep in mind, in the throes of this problem i moved to a place where i had no easy access to transport and everything is a mountain road. walking to the shop in my previous place meant a climb about 100m altitude up and down, now it's even worse at about 200 up and 300 down to the nearest supermarket. so it was brutal.
it was interfering with my ability to think, also. so i'm doing much better work in my jobs too.