Cathie -

Ouch! I fell down the stairs once and took a direct blow to the armpit tearing my labrum and injuring the nerves to the arm. For the 1st ~36 hours after the fall, I didn't think it was that bad. Then, the nerves "woke up" and I was in a ton of pain. The pain settled down to involve just my ulnar nerve which I still deal with the consequences. I'm glad it sounds like you're on the mend. It's a good thing you're in PT now and they can help calm the situation down.