Going from a working diagnosis of labral tear to bilateral adhesive capsules is (medical name for frozen shoulder affecting both sides) is a pretty major swing. Getting that condition involving both sides is not all that common. The evolution is fairly interesting in that in most cases it tends to get worse for a while, then plateaus out and then starts to slowly resolve - even without ongoing treatment. The major downside is that the progression can last a year or more. The defining criteria of the condition is proportional limitation in external rotation more so than abduction more so than internal rotation more so than flexion. Best evidence for treatment is joint mobilization and stretching. You will need to learn how to do those yourself and work on them several times per day. At this point you should read a bunch online about adhesive capsulitis and look for a PT with orthopedic clinical specialist credential (OCS). You will want to specifically request that you see that PT every time you go for treatment (rather than being handed off to an assistant or other less experienced clinician). Good luck with your rehab.