Wrist pain...Hurts when move side to side and up and down...Comes and goes...No previous injury...In middle of wrist?

Wrist pain. Wrist pain with motion in an atraumitic hand can be a difficult diagnosis. Since it is with all axis of motion it most likely is a problem with the radiocarpal joint. An eval by a hand surgeon is essential. Good x-rays will help provide a diagnosis. Including kienbocks a vascular problem with a wrist bone. If still unsure an MRI will provide soft tissue imaging, possible a ganglion cyst.
Wrist pain. So many things possible. The fact that is non trauma related makes you think of an inflammatory arthritis or crystal (gout) arthritis. Specific overuse problems such as dorsal compartment tenosynovitis. Hard to give specific answer without complete history and physical.