I have experienced this before whilst being on steroids etc for PMR. I am currently on 8mg having been through all of this 2 years ago (got off of steroids pmr came back in spades and had to go back up to 15mg then reduce etc.) I have been for a short walk yesterday and today to attempt to get back to normal. result totally wiped out. I know this is a result of reducing from 9 to 8 but I have done it slowly. I don't have any pains I am just tired I can't do nothing it drives me barmy I have always walked its what I do along with my husband. Can anyone give me any ideas how long it will take to get anything like normal?