Thanks for you post. I dont think pullups are a problem in that you can injure yourself doing them anytime so the risk is there in anycase. The Dr is correct in that any end of range exercise with load will place more pressure on the labrum. So we need to ask outselves is this normal risk? Maybe yes, maybe no. Tennis players who have labral tears go back to tennis with overhead activities and cope well. Of course there's a lot of end of range strengthening first. So my cal would be it is up to you. There is increased risk but it is only a labrum and many of us have labral tears and don't even know it.

One thing though - a labral tear wont make your forearm weak!