This may be a homoeopathic symptom, usually, the right foot will feel hot and the left one cold.I

f there is no explanation for this -like after a trauma, a or so- then try Lycopodium D6 globuli ,suck twice a day a globule. When lycopodium, fits then often the patient may also have a very strong craving for olives[I have seen this many times.

A strong craving for olives may make one thought go in the direction of Lycopodium especially if the patient has low self-esteem and wants to prove himself in all kinds of ways

Just a few globules could spare the patient endless examinations and many thousand of dollars of examinations.