Hi, I am overheating very often and I am not able function on warm day. My worsened body coordination, pain, burning and spasms in my muscles, dry skin and unability to sweat, makes my existence unbearable not thinking about any activity that would make it worse. I avoid fatty and sugary foods and try to drink plenty of water with a bit of sea salt. Air-conditioning can quickly improve my condition. I am very worried when hot weather comes. What is wrong with me? How can I get my health back or manage symptoms?