My thanks for all the amazing advice I received. I went back to work on a very light load with flexibility because there was someone actually doing my job and I just came and went as I could. Early in radiation time I was there three days a week in bits and pieces, two days last week but am going through post radiation discomfort and fatigue so will go down to perhaps one day for the last two weeks of term (if they happen). Next term (if it happens) I will stay on a light load, my replacement will be gone but I am confident I will be able to cope with it, particularly now that I have learned about lots of new technology to pre-record some parts of the lessons. Having understanding principal and deputy principal has made a huge difference. I'll just see how it all pan out really. Regards