Does anyone in this group have Neurocardiogenic Syncope? And have you ever woken up out your sleep to pass out? This has happened to me twice now. I had a tilt test which gave positive results that have syncope. My dr advised me to take in more salt and more water. I have been doing that for a month now and last night again, I woke up with my ears buzzing, head tingling and felt very weak. When I took my blood pressure it was 70/40 and my pulse was 56. I really need some answers and help!! Please, anyone!!!