BluAngel,
I am so sorry for your pain. Judy has given you food for thought and her comment was certainly a stong possibility. . People who take high doses of corticosteroids, such as prednisone, for long periods of time — for instance, people with chronic illnesses such as rheumatoid arthritis and lupus — are more likely to experience avascular necrosis.
I understand you have had many test and your history of medical problems goes on and on. I am sorry for your pain and the frustration of going through so many tests without finding an answer.
As this has been going on for 2 months I would suggest you return to the Dr of your choice and ask if you may have avascular necrosis ? I am not sure how long ago you had your MRI, CT scan and other testing. Things can change over a short period of time.
I will keep you in my thoughts and prayers.
With gentle kindness,
Kitt