My mother has diabetes and her doctor was always warning her about the necessity of proper foot care. Apparently poor blood sugar levels can really wreck habit with your foot strength and the healing of tissue in your foot.
A few years ago my mother starting experiencing foot weakness and her doctor linked it to too high blood sugar levels. Apparently the more out of whack your insulin is, the more weakness of limbs you can experience.
My mother is currently in a wheelchair because her foot is too weak to support her body. She hasn't walked in almost a year because her foot weakness has gotten so bad. Whatever you do, take care of your diabetes because it can cause serious mobility issues later in life.
My mother's doctor hopes that she will walk again with a proper diet and with her diabetes more under control. So far there has been no improvement so we are worried that her condition may be permanent.