I notice that when I walk, use the eliptical or anything where there is arm movement, the insides of my arms get sore. It's the area up near my arm pit. It feels like chafing, but there's no visible redness. It's not the whole time I'm walking, and not every time, either. It's annoying because I end up holding my arms out, away from my torso.It looks like I'm ready to take off. Any hellp would be appreciated as far as what to do. I've also tried different bras as well..