So I've been running like a mile each day for 3 days out of the week. But I've laid it off since I've been getting a lot of plantar fascitis, knee pain, and pain around my shins.

I'm not even that old. I'm very confused, maybe there are some exercises I can do? Went to a running shoe store and they recommended me some more cushioning shoes like a glycerin gts 22.

Any tips, recommendations, comments, or suggestions would be appreciated.