Need advice for Ehlers Danslos and joint problems

If my shoulders are really playing up I have to sleep on my back

There is a type of shoulder brace I’ve seen

I've seen a type of pillow that's shaped like a brick if you like to lay on your side that I'm planning on getting. I like to lay on my side but I have to use like two or three pillows so my shoulders don't dislocate through the night.

Sorry, idk about the shoulder. But my thumbs like to really come out all the time so I can help you out with that! I would look into metal ring splints/thumb splints, my personal fav company is Zebra Splints. These things help so much, and everyone always compliments me thinking they are just regular jewelry pieces!