I have worked for my current employer for 11 years with an excellent track record. I returned to work 6 months ago after having some time off for MH issues and personal circumstances. Returned to a new role with different managers who I believe are bullies and are trying to force me to resign. My union rep has suggested I ask to resign with three months pay or choose to go off sick due to work stress and take up to 6 months off then resign. What would you do?