I just started Avapro one week ago. I experienced what felt like my heart stopping for a moment and felt like I would faint. It's possible I was dehydrated since I spent the day at the beach the day before. I had a stress test, echocardiogram, ecg and other tests last week and they showed my heart is fine except for a mild aortic sclerosis. If the cause of this event is dehydration, how much should I hydrate and how long does it take to become hydrated when using this drug.