I have suffered from migraines 25+ years. I have taken different doses of propranolol to lessen frequency & severity (20 mg BID currently). About 6 months ago my migraines have worsened. Recently, about last 2 weeks, I have an almost constant "buzzing/humming" in my head. It's hard for me to explain....during the day it doesn't effect me as much, but at night when it's quiet, this buzzing seems loud and I know it effects my sleep. This is now a concern for me. My PCP recently relocated and I am currently on a waiting list for a new doctor - I am told the wait will be 6+ months. Is there any information you can give me? Other than migraines I consider my self a healthy 52 yr old female. I am not over weight. THANK YOU, Cynthia