I also have serious foot problems that prevent me from doing many things. I started riding because it was the only thing I could do, with problem feet and bad knees. I have foot pain and numbness from cycling too. I put an arch support insole into my biking shoes and that helped some. I also like Soredawgs insoles. I would also recommend you see a good podiatrist. Custom orthotics might make a world of difference. And be sure that you buy running shoes that give you the support your foot needs. I have had good luck with Ryka shoes from QVC. They are made for women's feet, are wider in the toe and narrower in the heel, and hold orthotics or insoles. Good Luck!