The last time I completed a prednisone taper I got shaky hands, occasional aches in my joints and back, and brain-fog for a couple of weeks. So, you could be going through withdrawal symptoms of the prednisone; but if you're concerned about this at all then definitely give your doc a call.
Rio, 31 yr old male - diagnosed with UC in 07/2006.
Alternative therapies for several months (SCD, ayurvedic treatment, VSL#3): didn't work and became anaemic. Canasa, 2 daily: remission for a month then flared-up.
07/07-11/07: 4800mg Asacol (6 x 400mg, twice a day) & Aloe Elite.
Completed first (6 week) tapered course of Pred in 10/07, flaring up since coming off it.
11/07: Switched from Asacol to 12 x 750mg Colazal (3 weeks on it and symptoms got worse)
12/07: Asacol 4800 mg, Started Azathioprene 175mg, Prednisone taper from 60mg - Now on alternate days of 20mg and 10mg; 2/08: added 1 Pentasa x 1mg.