My son keeps having blackouts. 2-3 times a week. Even if he does not black out, he seems dazed. We have done an MRI, EEG, EKG, Echocardiogram, Xrays, blood work, etc. He is currently on a heart monitor for 30 days and is taking Fludrocort. So far all the tests are coming back normal. He was initially diagnosed with vasovagal syncope in March of 2013. At that time it was only the one episode. As of January 2014 they have increased to 2-3 times a week. Has anyone ever dealt with these symptoms and been successfully treated? What other tests could we consider to find the cause of these episodes?