Post radiotherapy

I had a meningioma, then a few months later a re infection in area treated. Came out with half a head as such, further into the year a titanium plate fitted.Saw consultant during this time . Last year she mentioned I had tumours above my eye. She suggested gamma knife  treatment but needed it agreed by Doctors meetings. However it was not agreed because the other consultant said the tumours were to close to my eye. She suggested 5.4  weeks of treatment,each day,every day. She mentioned side effects possible, which came some have gone but others remain. What do I do!