Hi, I’m 21 and thought I was in good health until a few months ago when my heart suddenly began to race and pump so hard that it felt it was going to break my ribs. I was hospitalized for a night then released with a high dose of beta-blockers, which placed me back in the hospital due to my blood pressure being extremely low. The doctors told me that the valve in my heart isn’t closing and that my blood isn’t as oxygenated as it should be. So now it’s happening all the time, I get a bad pressure in my head and it feels like someone has placed cotton in my ears and I can’t concentrate on anything, and my heart feels like it pauses then stumbles to catch up and I get a jolting feeling across my chest. When it passes I get a horrible trembling feeling throughout my entire body. The doctor hasn’t told me what is really wrong with me or how they can fix it after many visits to the ER. I don’t drink alcohol or do drugs; I've even limited my caffeine intake. I'm 21 and I’m really scared for my life, any advice would be greatly appreciated!