Shoulder muscles locking up? starts with stiffness, then escalates to the point where i can't move. happens daily. have numbness and tingling too why?

?cervical ribs: Your symptoms might suggest a problem in the upper shoulder girdle from compression of brachial plexus, thoracic outlet syndrome, but you could have a rotator cuff tear within the shoulder, and even a different location of nerve dysfnctn. An EMG test and an MRI of shoulder will illustrate causation, and point the way for treatment.