Heat intolerance is an unusual sensitivity to heat. People with heat intolerance may feel hot when others feel comfortable or even cold. They may also have an unusual response to heat, such as intense sweating or anxiety.
Heat intolerance is a feeling of being overheated when the temperature around you rises. Heat intolerance usually comes on slowly but may also occur quickly and could be a serious illness. Once the sensitivity develops the side effects, exhaustion, cog-fog, etc. can last a few days.