I am 35 years old, and have experienced several episodes of syncope over the past 10 years. BP and heart rate are normal (120/80 and 70 bpm). Fainting when blood is taken has been common in the past - other than that, I have blacked out 5 times:
- once when an ophthalmologist was performing a pain-free test on both my eyes (10 years ago),
- once as a pain response to an object pressed on my kneecap (8 years ago),
- once 18 months ago after administration of an epidural prior to c-section (heart rate dropped to 10 bpm, also vomited),
- once 6 months ago in the car while gagging on soda that I drank wrong (I felt it coming on and was able to pull over to the side of the road), and
- twice recently back-to-back when I arose in the middle of the night with gas cramps (did not feel it coming on, resulted in a face-plant to the bathroom tile and 2 black eyes).
A 24-hour holter monitor showed no arrhythmias. My internist indicated that it looks like I have dysautonomia occurring due to a hyperactive vagal reflex. Is this the same thing as vasovagal syncope? orthostatic intolerance? or something else? What should be the next step? The dr. indicated an increased salt diet, but I am afraid that an episode could happen anytime (like driving). Any tips on avoiding syncope due to overactive vagal reflex?
Thanks so much!