they hurt alot when i walk any suggustions let me know

Get better shoes. See a foot professional.

Other than that I would need a little more information.

My toes sometimes get numb when exercising. It then seems to spread to my entire foot, and eventually even my ankle. Any ideas on what might be causing this?

My first concern would be circulation. Are your shoes to tight then. I would. look at if you have a low back problem such as a disc compressing a nerve.

All in all if the numbness persist see your doctor.