Hi My 17 Year Old Daughter Has Recently Beed Diagnosed

Hi my 17 year old daughter has recently beed diagnosed with a double orifice mitral valve, with mild regurgitation. She also has mild pulmanary regurgitation and tricuspid regurgitation. She also has FPFB, RBBB. She is a competative gymnast, in top physical condition. She continues to have episodes of chest pressure, palpitation, light headedness, and chest pain. 2 monitors have been placed on her. First showed one episode of SVT the 0ther monitor just sinus tach. Her cardiologist cont to tell me shes fine. These episodes all happen during rest and sometimes wakes her up from sleep. She dnies being anxious, or having panic attacks. Doctors also said to increase her fluids which she has and we have not seen improvemnt. Thinking about seeing a EP.