ORLANDO, Fla. — WFTV spoke with one of the nurse behind a push to form a union at one of Orlando's largest employers. A group of Orlando Health employees plan to present a petition to the hospital's CEO Tuesday, asking to stop changes to shift-differential pay. More than 5,000 signatures have been added to an online petition opposing pay changes at Orlando Health system. A nurse in the system said a union is forming to try and stop current and future pay cuts. They're planning to track down the hospital's CEO, Sherrie Sitarik, Tuesday to announce the formation of the union and to demand that changes they say will dramatically impact their take-home pay be stopped.