Running

Not a doctor but maybe something I've done will help you out. Stretching my calves everyday and going to a wide toe box shoe like Altra or Topo brought my plantar fascitis to an occasional minor soreness. I get soreness/pain in my left knee inside so I do squats and lunges if my mileage isn't keeping it strong enough, usually in the winter when I get lazy.

I like zero drop shoes a lot but it's recommended you switch gradually to allow your gait to adjust and all the under used muscles develop. Some love them, some hate them, might be worth trying on.