I too have foot pain. And yes, I have always gone barefoot. I have the Dr Scholls inserts recommended by the machine that you step on at Walmart. They help but the pain isn't gone completely. Check online for a coupon.
I have been walking on the treadmill with a slight incline. It has helped my waistline and it helps stretch the tendon similar to the exercises mentioned.
I've been going to weight watchers too. I figure my weight can't be helping. So far I'm down 25 lbs. Is it less weight, better shoes, walking uphill or everything combined? All I know is it is helping some.
Thanks for the shoe suggestions. I need to go shoe shopping. I'd rather go fabric shopping though.