I was diagnosed with hypermobility and sent for an echo to check for vascular EDS. It came back clean but they said it looked like I have a narrow aortic valve and possible AS. They are sending me for a chest CT. What are the chances that it was just a bad reading? How likely is it that the echo was right? My doctor told me not to worry so I’m just wondering how common it is that echos are innacurate.