Hi Yael,
That sounds such an awful situation to be in. As much as I would like to have an excuse not to do the dishes, cleaning etc. I know there are a lot of good things you are missing out on too.
I don't know anyone that has had the radiation treatment, but my advice is to think of it as just another medicine. We tend to think of all the 'bad' associations radiation has and forget it has lots of benefits too. Yes, there many possible side effects that you posted, but any medication has a horrible list of them - look at the side effects they list for the pill or even pregnancy!!

I hope all goes well with your allergy test and you get some answers too.