Catherine, I can't believe this but I may not understand the system in the country where you are currently working so I'm not going to be critical. If one of my children were attending your nursery I would not want them to be taught by an ill teacher - and you are not a well lady just now! Sounds like you have the flu - what will happen if you cannot move tomorrow? I would phone your "Director" and tell her you are still very ill and came back too soon. I know you want to appear conscientious and dependable but it is YOUR health you are responsible for and not arranging cover. Doubtless the "Director" gets more pay than you - she should be earning it don't you think? Hope you feel better shortly and don't go back to nursery until you are rested properly.