Hi, I m 50 year old woman, diagnosed to be overweight. I have episodes where my body temperature rises suddenly.. I feel my head overheats, and I start sweating profusely. I have a feeling of being suffocated, my vision gets foggy and darkens - as if I might pass out soon. I have to counter it immediately by pouring cold water over my head, or turning on the AC and lying down for some time before my body temperature returns to normal. I have communicated this to a doctor, but I think I was not taken seriously. Such episodes occur about 3-4 times a month, sometimes twice within the same week. I have tried to figure out if any activity causes this, but I cannot narrow down any causes. Please advise how I can figure out the reason for this. MK