While it is unlikely that the symptoms you describe are due to a brain tumor, only a CT scan or MRI scan of the brain can rule-out a brain tumor.
You should ask your parents to take you to see your doctor. If your doctor examines you and is concerned about the possibility of a brain tumor (or other brain abnormality), then he/she can order the appropriate tests.
Sincerely,
Robert A. Wascher, MD, FACS
www.doctorwascher.com
Author, "A Cancer Prevention Guide for the Human Race"