I wonder where the burning sensations tend to appear? For example, if they were in hands or feet primarily that would be more consistent with a nerve issue. The types of nerve issues that can cause this type of sensation in those locations include diabetes (which causes progressive nerve damage), numerous medications, nutritional deficiencies (especially B vitamin deficiencies), and thyroid problems.
If the burning areas occur instead on parts of your skin on your body but not really in your extremities, I would want to know if you notice any rash or dry skin? This is because a condition like eczema
, which causes redness, itching, and dryness of the skin could theoretically causes burning or other strange sensations in the areas affected by the rash. However, if you never see anything on the skin, then this is much less likely.
If neither of these two things are going on, then the sensations you have would fall into the category of "paresthesias" and you should have a good neurological examination by your doctor
. Occasionally, there can be neurological disorders, particularly I am thinking of multiple sclerosis
, which can present with these types of symptoms, although usually there are also other findings, although they may be subtle.