I had my PM put in in Oct. They released me to start running in January. Of course I had to start out slow. I get to increase about every 3 weeks I'm only up to a mile and half right now. In the process I've lost about 20lbs since my surgery, it feels like my PM is more evident and it feels like its moved or closer to my arm pit. When I wear my bra it feels like it constantly irritates it. Plus when I run it is achy feeling and sometimes feels like it pulls. I dont know if I'm not wearing a tight enough sports bra or what. I know if I'm doing a slower pace it's not as bad, but when I kick it up I notice it even more. I still have pain in my shoulder and cant lay on my left side without crossing my left arm across my chest. It's a weird way to lay and I dont lay that way very often. Does any one else have this type of issue? I hate to go to the doc for something silly. Can these things move if you loose weight?