Hi I was doing some heavy lifting at work and I did something to my nipple, not sure specifically what, and it caused my nipple to be hard under the skin, have a lumpy appearance, and invert. I was wondering if anyone knows what could have happened to it and if there is a way to fix this without going to the hospital. I take a degree of pride in my body and this is a slight confidence decreaser, especially since my fellow military men give me a hard time about it, please help. Thanks have a nice one.