Good advice from all.
To move her a bit, I know you said you are on your own but could you do this? Go to her back end and lift her onto her back legs for a while (so she's down on her knees. You would have to hold her there. Then put that end down and repeat with the front end. She really does need to get rid of gas, pass urine and droppings. You might also be able to move her from the side and prop up a bit with a bale. As she gets sensation back, you can perhaps get her standing properly, propped with bales. Her legs will be numb by now so she won't be able to get up on her own. Rub her legs every couple of hours, and move her even if it's only from side to side, and readjust the position of her legs. She's a big sheep, so it's going to be difficult.
My favourite trick for getting the rumen working and some interest in food is the Digestive biscuit. Break it into quarters and pop it into the side of her mouth. She may take a while to show interest but persevere.
I know what hard work it is having to manage the sheep without help - when it happened to me I got rid of all my big girls and kept with the primitives.
Good luck with her.