Since July, I have been having some muscle weakness on and off, especially in the arms. Since August, I have started getting mild/moderate and sometimes severe pain in my joints - collar bone, ankle, elbow, ribs, along the spine.
Vitamin D is normal. ESR is 1. All other blood tests are normal.
Been to a few docs - rheumatologist, neurologist, Orthopedic - can't find a cause. Last few days I have had alot of pain and weakness in my fingers also. It's difficult to hold a phone for more than 10-15 minutes. Everytime I exercise even a little, my whole body hurts. Few months back I used to exercise more than this and never had any pain. What could be the cause?