I was in Walmart parking today. All of sudden I started to sweat really really bad. So I took my top shirt off to my T-shirt. I was still sweating really bad. So I go SO to get me something to drink. I cooled off before he came back. But once I got in the store I got hot again and had to sit down. I had to fan myself with some paper to cool down again. Have any of you had this problem before?