I've had this condition for more than a year- I feel burning heat especially on my face and it spreads sometimes to my arms and legs and feet, it's almost always there, in a week about four days it's there making life really unpleasant!! Then every month or so after the most intense heat I get itching all over my body, face, head, hair, eyes, whole body..Feels like pin pricks/ ants...Its all really weird...What is causing this???