OK... I am trying to run for the first time in probably 15 years. I went out and bought a new pair of shoes because my feet were killing me. Now, my shins hurt when I start running. I think that is called a shin splint, but have no idea. I am 5'10" 180 lbs. I have been walking for a while (on a country road), so I am trying to add some running in there while I walk. I have to stop running after a few hundred yards, not because I am so winded, but because my shins hurt. Are there some stretches I need to do, or something else that I should try? THANKS!!!