Hello there, I understand your concern about this burning sensation in your feet. From the symptoms you have described it seems to be some kind of neuropathy that is damage to peripheral nerves. There are various causes for this and can be as simple as some vitamin deficiency. To treat this condition you need to be thoroughly evaluated that includes a physical exam and some blood tests and maybe some X-ray. Do visit a physician who can conduct an examination and suggest blood tests like, CBC, Vitamin B12 levels, Urine routine, Vitamin D levels, Serum Calcium, Kidney functions, Liver function, Thyroid functions as a baseline to find the cause of any nerve damage. Most commonly Vitamin B deficiency can lead to these symptoms, especially if you are a vegetarian as B12 is present only in animal sources. Try to improve your diet with fresh leafy vegetables and milk. If you eat non vegetarian food then include eggs and fish in diet. Hope this helps. Take care.