I am a 64 years old, with diabetes for the last 30 years but under control as maintaining hba1c around 6.6. No bp problem but takes prostrate medicine silofast 8. No swelling on feet/legs but my feet remain heavy as if the blood has collected on the feet. Kft, lft, cbc, vitamin d and vitamin b 12 are normal and also walk for around 4 kms daily with normal weight. Why my feet remain heavy as if blood has collected on the feet? Any further test/investigation recommended /