Hello. Since I Suffer From Hyper-mobile Joints, My Shoulder Frequently

Hello. Since I suffer from hyper-mobile joints, my shoulder frequently "pops out" of place. Usually, it returns to it's normal position on it's own. However, this evening I had to use excessive force to get it back into place. Ever since it snapped back into place, I have lost almost all range of motion and sensations in my arm due to shoulder pain and weakness. I understand that I likely pinched my brachial plexus nerve. However, it's slowly been increasing in pain severity since tonight's incident. Should I be concerned?