Embarassing nevertheless interesting.

Though I watch TV rarely & but often end up watching sports channels. Watching Girls playing tennis or badminton or hockey was always interesting!!!. But in the last three months I started appreciating their perseverance. I donot know whether they have the same problem which I am facing, as I donot know any girl who pursue sports vigourously.
Recently I am into long distance walking and running. When I started, I thought I will end up having musculoskeletal problem. But with lot of work up in internet/ library, consultion with many experts including Thiru annaswamy and state of art running shoes, I am not having any musculoskeletal problem so far. I am facing a strange & embarassing situation which I thought is rare. But I am shocked to know it is a common troublesome pain for long distance runners!!. Because of constant movement of cloth, my nipples hurt while running. I tried bandaid/so called water proof band aid, micropore, dynaplast, 3M plaster(many known by various tradenames). I tried rolling creppe bandage around chest(somebody may call it as manmade Bra). But with constant sweat, heavy movement of chest, constant moving cloth over the chest nothing has succeed so far. Some gave me bruises while removing them everyday. I enquired in runners inner circle. Many have this problem, but nobody seems to have a permanent solution!. With this problem, my running programme has run into rough patch!!.
Now William sisters or Saina or Sherapovas.......... get huge respect from my side.
Have you ever came across such problem in your practice?.
Do you have an answer for this tenderness?.