Can someone die from a brain tumor without knowing they had one? i'm afraid i have one because of stiff neck, and tinnitus. doctor says it's anxiety.

Not the right stuff: Those are not the right symptoms for a brain tumor, and you will not die of a brain tumor this time. People do not normally die of a brain tumor without knowing they have one. People who never ask questions or see the doctor, they might. You have already seen a doctor, and your symptoms do not indicate a brain tumor. First time seizure or gradual loss of neurological function - look for those.

Anxiety Disorder: You are a 20 yo female with ADD, anxiety and hypochondria who is on meds for anxiety, depression and muscle pain/spasm You've already managed to get a cervical spine MRI for your symptoms which probably included brain as well. I dont see how your doctor would have missed a "brain tumor". You may need to consult with your mental health provider about adjusting meds (the aspirin can cause tinnitus).