Foot question?

Does anybody out there know if you are Diabetic (type 1) and you begin to experience mild swelling to the top of the feet, is there a relation to the swelling and the diease?  Or do I chalk that up to salt/sodium intact? endo always checks my feet and so does my kidney doctor....have you had any issues with kidneys?  Swelling of feet and ankles could be a sign of something related to the kidney, but don't panic.  Just something to consider.  Could just be the salt/sodium it and make sure it doesn't get too bad....if it does, you should call the doc!