It feels like there is something loose in my right side of the palm of my left hand, its been there for a while now. Only noticed it a couple of months ago. Feels like a bone chip or something, feels sorta long & thin like an overgrown grain of rice. I don't remember ever falling or hurting my hand at any point. I can only feel it when I squeeze it & it kind of hurts a bit when I do. But it doesn't really bother me. I just want to know what it is.