Wilma symptoms and conditions

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.

Someone told me you shouldn't eat Grapefruits or drink Grapefruit juice if your taking Norvasc, is this correct, as i eat a l/2 one at least every morning for breakfast plus sometimes eat one during the day for just a treat. Please advise, thought may have found something on side effects about it, but unable to do so. Thank you. Wilma