Itching and observed dark spots mostly on legs. Does it indicates sugar levels high? i used to observe these when i used to take Metformin (mixed with Glimperide...). As legs tingling was very frequent then stopped medicine and following mostly diet control (cheating at times though) and then these tingling and itching was stopped. By the way i used Vit-B tabs for some duration. Then the tingling was stopped completely. Now it started a bit on and off (less frequently). Now not on any medicine just checking on food that eating with moderate exercise. Now i need opinion from members of the forum on my query raised at the beginning.