This is most likely cervical radiculopathy

Based on the information provided your shoulder problem could be due to a condition called frozen shoulder but since you’re having weakness in your fingers you need further evaluation. The weakness could be due to nerve compression at neck or at hand level. For your above problem you need to get yourself examined by a orthopaedic doctor in person and might require further blood and radiological investigation. The medicines for the above problem cannot be given without clinical examination.

There might be nerve compression and it could be shoulder impingement syndrome or frozen shoulder get x-ray done of shoulder and neck ap lateral and consult orthopaedic surgeon.

CERVICOBRACHIAL NEURALGIA U NEED TO CONSULT WITH ME DIRECTLY THROUGH PRACTO FOR COMPLETE DISCUSSION ON THIS .....! DR .SANDEEP SARAF AGARWAL