PredniSONE and zapped

I started with 60 mg per day for polymyalgia rheumatica and now after two years have weaned myself down to 5 mg per day. I have a side effect that I have not read anyone else having. It has effected my taste buds. Many foods that I loved in the past, have a foreign taste to me. I am 66, male and have tried to drop down to 2 1/2 mg but the pain is too intense to remain at that level, so had to return to 5 mg. I have lots of pain in the feet and especially toes. I can tell that I am getting better and am very anxious to get off of Prednisone.