Everything sleepydude said.

I did the same thing with my right shoulder a couple of months ago - just woke up and the pain was almost unbearable.

I used the DMSO and I used a heating pad every night. It would go off after an hour and when I woke up I did another hour.

I kept it as immobile as possible during the day.

I refuse to see a Doctor unless it is a HUGE emergency. This wasn't.

Fortunately, it got much better, but it took almost 6 weeks before I could use it like a normal person.

Will say a prayer for you, friend. 🙏