In the last month I've started exercising on our Gazelle doing 2 to 2.5 miles six days a week. After a week or so I started noticing my feet would start to tingle after about 10-15 minutes and would go away a few minutes after I stopped. I've never had this happen before. I'm relatively healthy aside from marginal hyperlipidemia and being overweight. My blood work was just checked in the last couple of months and I have no diabetes. Any ideas?