1.)Changes in behavior may include mild memory loss, mood swings, or intense emotional outbursts. Tumor location, medications (such as chemotherapy and steroids), and stressful life situations can influence behavior.
2.)General signs and symptoms caused by brain tumors may include: New onset or change in pattern of headaches. Headaches that gradually become more frequent and more severe. Unexplained nausea or vomiting
3.)Blood tests can also give your doctor an idea of how well your organs are functioning and if they've been affected by cancer. Examples of blood tests used to diagnose cancer include: Complete blood count (CBC). This common blood test measures the amount of various types of blood cells in a sample of your blood.
hope this helps :) sorry if it doesn't
