One of the symptoms of late term diabetes is swelling of the feet and the legs. When pressed, the indentation tends to linger. It also indicates edema in the leg due to late term diabetes.
Not all diabetics are obese. Thin people can also have diabetes. Swelling of the legs due to late term diabetes is the beginning of possible necrosis and amputation.
Alleviating diabetes as urgently as possible is the priority. The diabetic condition must not be allowed to progress any further. In this case, prescription diabetic medication would be necessary to stop the advance of diabetes as soon as possible.