ladyGracie The rotator cuff is at the top of your arm attached to the shoulder ..... don't know how to describe this medically (!) but the part of your shoulder which rotates your arm. That's a pathetic description.
I know exactly what you mean about trying to turn in bed. It seems to stiffen up a bit like a frozen shoulder I guess. I do the same as you and use opposite arm to support it as I lever myself up!
My symptoms started with 'electric shocks' down the arm if, for example, I put arm forward to turn on car ignition. Thought I had a trapped nerve. Hanging clothes in wardrobe, putting stuff in kitchen cupboards, putting coat on/off.
Basically everything though am able to do the weeding (great!!) as arm going downwards. I use ibuprofen & paracetomol to keep pain at bay!
Sorry this is soooooo boring! Has made me grumpy because I'm used to being active. Wanted to paint the shed this week but almost pleased it was too damp! It's made me generally lazy, probably because of broken nights sleep ....
Anyway, the consultant orthopaedic surgeon had me all booked in for a repair job, shaving excess bone and repairing the torn tendons ..... But I've put that on hold! As he told me, there's no promises that the repair would be successful. I think scar tissue has built up and is holding tendon in place because electric shocks have stopped! I said I would call surgeon once I was ready to take the plunge!!!! I've got other medical issues so am reluctant.
Apologies for this mammoth post. My arm is now aching from typing!!!
See how grumpy I am. But generally fairly happy go lucky. Good luck with your shoulder & get a scan xx