I am very very sorry to hear about
your tumor and your cancer, and I know what you are going through. My brother-in- law died of brain cancer in 2002.
Just out of curiosity, I was wondering if you are or were a heavy user of cell phones, and is your tunor on the side where you use your cell phone?
The reason I ask, is because my brother-in-law felt very strongly till the day he died that his cancer was directly caused by his excessive cell phone use over 6 year period. He was a salesman and he was on the cell phone constantly morning till night, 7 days a week, and his tumor developed on the same side he used his cell phone. I know there is no hard core evidence saying that cell phone usage causes brain cancer, but after seeing what my brother-in-law went through, now my whole family and his family, we only use our cell phones when absolutely necessary, and with a head set where posible.
Good luck and may god be with you in your fight.