If I had taken a fall and noted pain almost immediately, then I would have been more worried. This pain didn't start getting bad until a few hours later and then progressively got worse until I felt like an invalid and couldn't do anything. And then it was pretty bad for two days with little improvement. But it seems like its getting better now and I will just be a little more considerate to myself in the future.
Let it rest. The real test is if you can reach behind your back to touch the opposite shoulder blade. When I had my tear I could touch it but once I brought my arm back around the pain would build until I was almost in tears. Have you been icing it?