Disgusted with medication

I am retired military & always go to the VA clinic. In 2009 they prescribed me with ranitidine. Well in early 2014 the VA discontinued the medication. Then few months after that with no symptoms I was diagnosed with Prostate Cancer. Had the surgery & removed the prostate along with my manhood. Been trying to fight this through the VA for years. With PTSD from it & also because they gave me the medication that causes cancer