Hello, I had a L shoulder injury about 10 weeks ago (partial tear in supraspinatus tendon, calcification and thickening in the subscapularis - ultrasound results). Have been attending physio regularily, twice a week ever since. This morning I woke up with a great pain and feeling of stiffness in my left shoulder, but the area mostly affected by pain seems to be on the top of my shoulder, about half way between the neck and the edge of the shoulder. Could that be a frozen shoulder?