Entertainment Celine Dion No Longer Has Control Muscles, Singer’s Sister Reveals Amid Incurable Stiff Person SyndromeBy JAGUNLABIDecember 19, 20230 Celine Dion No Longer Has Control Muscles, Singer’s Sister Reveals Amid Incurable Stiff Person Syndrome Claudette, Celine Dion’s 75-year-old sister,…