Fosamax and prednisone

Hi,I am a 54 year old male and a recipient of a kidney transplant in mid 2006. I have been on a variety of different drugs mainly the two that i am most concerned with are Prednisone and Fosamax. I stopped the Prednisone with my doctors blessing as my transplant went very well. However i have been suffering from joint pain first in my feet at the joint of my big toe and then my knees and right hip, next my neck. The knee pain is the worst and my legs feel fatigued most of the time. I am active however it is difficult to remain positive when you experience constant pain. I don't know if this is being caused by Fosamax. I now believe that the Prednisone was masking the pain. Any thoughts?