Numbness In Hands And Feet, Hazy Vision, Light Headedness, Discoloration Of Feet. Low BP. Is It Something Related To Diabetes?

Hi. I am not sure what these symptoms are caused by, but they seem to be getting worse everyday. Some days are better than others. On the bad days I lose feeling in my hands and feet, hazy vision, light headedness, sometimes blackout and wake up on the floor with no recollection of why it happened. Always a lot of discoloration on both of my feet. I went to a blood pressure machine and every time it says "at risk- low blood pressure." Someone told me it has something to do with diabetes.