I am a 68 year old man in excellent health. 5'9" with weight of 160. I walk 16 miles a week, and the only prescription I take is Losartin for high blood pressure. I have been on that for about a year. But just in the last week when I walk around the house in my socks, I suddenly get the sensation that I just stepped into a cold puddle of water. It is so real, that I reach down to feel the underside of my foot, and it is DRY! It happens 8 to 10 times a day. I cannot figure out what is causing this. I have seen a lot of other people complain of this on the internet, but it seems no one gets an answer as to what causes it.