Hi PetPuppy. Pain or achyness in the ball of your foot could be from many things. Does it work into a spasm or is it numb and tingly? That would tell you that it probably is a MS thingy.

If it's just sore and painful, then it could be a planters wort or something like that. Have your PCP look at your foot to see if it's an injury or what?

In the meantime, sit down, put your feet up and have a hot or cold toddy (depending on where you live..

Healing Hugs,