Arice- Of course there are those who have exprienced this- I would assume. Just as you go up and find the right dose you get stonger (normally)- the opposite is going to happen when you go down. Sort of constitutes the gravitational pull
Im not sure about the second question..I think it may depend on how long you have been on off the cellcept truthfully.
If you are sensitive to prednisone, then no. But if you can tolerate it and these symptoms are impairing your ability to continue on with everyday life, then yes for the prednisone. I take 50mg a day... have for three years. I can tolerate it it very well, or have adapted to cope with it I suppose.
Hope these give you some direction!