Are my fingers stupid?

I have the same kind of problem, only my whole hand is screwed up. My fingers don't move all the way unless another one is also moving. Like if I touch my middle finger my ring finger has to move also, I can't hold it back. My dexterity is terrible, but there is no harm in it. My primary doctor, chiropractor, and neurologist all know about it and there is nothing seriously wrong, that is just how it works.