Hi. Welcome to HCM. You are having type DM since many years, the likely cause of this symptoms is either peripheral arterial disease (PAD), which is due to poor circulation, or diabetic peripheral neuropathy (DPN), due to nerve damage. I think you are suffering more form DPN. DPN is an important quality-of-life issue for half of all people with diabetes. The pain is often described by patients as tingling, burning, sharp, shooting, and lightning-like. All people with diabetes should be screened annually for DPN. Although there is currently no cure for this complication of diabetes, optimal glucose control helps to prevent DPN. It s also recommended that people with either condition improve cholesterol and blood pressure, do not smoke, and avoid excessive alcohol consumption. I advice u to use microcellular rubber (MCR) shoes for walking. I also suggest to visit a good diabetologist who will examine your foot thoroughly, look for pressure points and then advice next course of action. Regards