Amitriptyline
"I was originally prescribed 25 mg per night when I was 13 to treat Chronic Headache Syndrome (CHS). It worked like a charm. My neurologist took me off it when I was 19 because people usually outgrow CHS by adulthood. As the medication left my system, I discovered I had an anxiety disorder I never knew I had because the amitriptyline had taken care of it! Now, I'm back on 25 mg and I couldn't be happier."