Those are not the typical signs of PVD, they are pretty nonspecific. PVD is not a common complication of Type1DM, it's much more common in Type 2, and particularly in those who smoke and/or have high lipids. It's considered a "macrovascular" complication/disease (like coronary disease which I treat, or carotid disease which goes with high blood pressure) Type 2's are prone to these. We are more prone to get "microvascular" disease like retinopathy and nephropathy (kidneys).
Simple screening for PVD is pretty easy: Search for the "pedal pulses". The dorsalis pedal pulse is on the top of the foot usually between the great toe and the second toe a ways up. The posterior tibial pulse is behind the medial malleolus the bone that sticks out on the inside of the ankle. If you (or someone) can feel those 4 pulses without difficulty you don't have significant PVD. The classic symptoms are aching/cramping of the calf muscles with exertion, like hiking uphill, relieved by rest. You say you walk 12k/day so I'm assuming you don't have to stop because your calves cramp up. I'm betting you don't have it. Check for the pulses just for grins.