Was just diagnosed with a bicuspid aortic valve. I have had the echocardiogram, stress test, holter monitor, ekg. Tests show I have irregular heartbeat (sinus bradycardia - not extreme), skipped beats. I have some of the symptoms (tightness in chest, lightheadedness, near fainting). The tests don't show aortic valve stenois or regurgitation. Is it possible to have the symptoms without the tests showing I have a "problem"