Hi
Persistent Pain and unable to lift weights is concerning, you need to be examined by an orthopaedic surgeon for a possible inflammation in your joint, muscle sprain or a tear.
Next Steps
Consult an orthopedic surgeon for examination of his shoulder and get an MRI
Health Tips
Until then if pain is severe Avoid lifting heavy weights, immobilise with arm sling pouch, ice pack application, anti inflammatory medications and analgesics SOS