I have been on predisone for 2 weeks, 60 mg. a day, trying to get off, took it for bells palsey, (dr. orders) mylegs are very weak, how long befor I feel better, I,m 80 female, Bells palsey gone, but am weak. down to 20 mg day, cutting back to 10 mg,then 15, then10, then 5, then stop, legs weak and don/t feel good. will the weakness go away in my legs?