I Am Suffering From Mild Type 2 Diabetes For The

i am suffering from mild Type 2 diabetes for the last 2 decades. I have been maintaining blood glucose levels with diet and exercise and Metformin drug. I am experiencing some some minute blood clotting at times in the lower limbs of legs. At times it gives mild pain when scratching done. I am experiencing some pain in the soles after walking for 2 to 3 kms of distance. Does it indicate any vascular problems? I am 60 years of age and now retired from govt service.
Thank you.