myasthenia gravis
"I am 70 years old and have suffered from MG for 12 years. I have been on predisone for that time 30/10mg eod.

My neurologist said that I had to get off the prednisone and highly touted Cellcept.

I was on 2000mg per day for five months and then started to have severe calf, ankle and feet swelling, horrible muscle aches and increased weakness.

I really was in misery.

I made a special appointment with my neurologist. He told me that it couldn't be the Cellcept that was causing my problems. 

But, he left the room for about five minutes, came back and said I had to get off Cellcept NOW. I believe he left the room to read up on the unusual but severe side effects. My symptoms are listed in that category."