"Discharged whilst still in pain."

I was taken to A&E following an accident in which I hurt my neck and back of my head. After several hours in there and blood tests and an CTscan there was a change of shift and a new doctor came in and told me I could go home the pain was a result of my advanced cancer.  He ripped off my neck brace in a manner that made things worse and when I tried to speak to him, he just said go home. 3 days later I am at home still in pain but not able to see GP till Friday. After speaking to my oncologist the doctor's report to her never mentions cancer and said I was pain free when discharged.  All bloody lies.