Been diagnosed after 2 years of doctors appointment. Just told me sinus problems take pain killers. Headaches got so bad I paid private ent and the took 3 mins to discover tumour but now stage 3 . How do I deal with the anger I feel with being fobbed off 17 times from hospital and doctors. I just can't control my anger and concentrate on my survival. Start chemo next week but my mindset is that I really don't care now. Is this curable . Think I'm depressed after years of pain