I have been experiencing buzzing and excess ringing in ears for about a week now! My ears also hurt and I also have headaches, nausea, tiredness, and am extremely dizzy. I had a MRI 6 months ago and everything came back negative, they found nothing. Previous to that I had a CT scan done 2 years ago and everything normal. I have no family history of brain tumors, and was just wondering if a brain tumor could develop that fast (6 months) and cause those symptoms in that amount of time?