Hi, I recently started noticing an increased sensitivity to heat, like, even if I exert myself slightly, I feel itchy all over. I also noticed these faint reddish colourations (the itchy sites when I feel slightly hot) with heat rashes on them, which is ridiculous because its mostly cold here. I feel completely fine - no fever or whatever else - and this itchiness only starts when I feel slightly hot and goes away once I remove a cloth or turn on the AC or do anything that would lower my body temperature. Sometimes being too excited triggers the itchiness. What may be the problem? I m really tired and just grateful we are approaching winter, not summer. I really hope you know what this botheration is and would be able to help me with actionable advice. Thank you in advance.