Erin,

The combination of all that you are going through, including the pain medications and not being able to lay down because of the shoulder is likely the reason things aren't moving.

Can you get into (and out of) a bath with your shoulder the way it is? If you can, getting into a deep one and massaging your belly gently while in there might help to get things moving.
The buoyancy of the water can help to change the pressure dynamics within the abdominal cavity, and that might help to get things moving. I learned about this when I had a similar situation during a bout of TM and it worked.

If the BM issue doesn't come around today, it is probably a good idea to seek medical attention...especially since it has been nearly a week since the last one.

Gee whiz...you sure are getting hit with one thing after another lately, and I'm so sorry that this is happening on top of it all.

In my thoughts and sending mega s.

With love, Erika