I just finished a follow up appointment with my new family medicine doctor. She is located in Orange County, CA. I don't know what the proper etiquette is for posting doctor information, so for now PM me if you would like her details. She has OI herself, so really does know what she's talking about. After taking some BP and heart rate measurements at home for two weeks, she sent me home with some propranolol. We'll see how it goes!