You might try freezing a bottle filled 3/4 with water. Once frozen place the bottle on the floor and roll your sore foot back and forth on it. If you are not stretching your calf muscles you might add this into your route. Finally, don't walk around without shoes on your feet. Keep a pair of shoes next to your bed so that you can slip your feet into them when you get up to start your day.

Hope this helps and hope your foot heals quickly.