you don't have to do anything in life you don't want to. tell your boss you're not doing it it's affecting your health. make sure you do go to your doctor and explain what's going on so it is on your medical files make sure they are aware of all the effects this is having on you.
it's a bit like your boss sending you on a nut tasting course and you telling him of a nut allergy but him telling you you have to go.
your boss is a tit.
