I did 6wks radiation on chest and gland and underarm where nodes were removed. I worked during it. Was fine the whole way through. My skin was very very red but I was lucky that it didn’t react badly at all. The last week and for a couple of weeks after I was more tired than normal. Had a nap during the day when I could (I have 2 small boys) but felt good when I was up and about doing stuff but when I stopped I hit a wall! Have come good now again and energy levels are back to normal just in time for me to go back to school!! Good luck x