Lumps around my body?

Hey guys i've been noticing lumps around my body, Like little balls of grissle near my bones, for exampel under my chin. My jaw, when i press down on my skin i feel a lumpy grissle. I can move it about but sometimesh urts, i have loads more below my thigh aswell. Is this something to be worried about? I can only feel it when i rpess down with my fingers.