Peripheral Arterial Disease.

Do your legs ache when you walk and do you find that by stopping for a few minutes then the pain is bearable?
This is quite common amongst diabetics and risk factors include,

.....Smoking.
.....Diabetes.
.....High blood pressure.
.....High triglycerides.
.....High levels of homocysteins, (explained here),
http://familydoctor.org/online/famdocen ... s/249.html Could be low levels of iron and/or BVits.
.....Weighing over 30% more than ideal weight.

This website explains it very well,

http://www.vascularweb.org/patients/Nor ... sease.html

This article suggests that treadmill exercises improve walking endurance and quality of life. http://www.sciencedaily.com/releases/20 ... 174426.htm