I Have Been Going To Quite A Few Doctors About

I have been going to quite a few Doctors about this and It is confusing first I suffered a large malignate Brain tumor in 2011 after 13 months of cimo. with methaltrexate I came out ok ecept my thinking is not so good. Then I have had lots of things go wrong. My apendix went bad and I had to have it remove then I got pnamonia /during I got this cace of Bersidise in my hip and also artheritise in both hips all in 4 years now I have a problem falling all the time I just walk along and I just feel like I have lost my center point and my top half goes faster than my bottom and down I go the Doctor did a MRI and discovered two places on my neck that the spinal cord was nerrow they said they could do nothing and for me to continue with the cane . I also found there were a few places on my back that had what was called shermans Wich I no nothing can you help