Is vasovagal syndrome REALLY related to heart problems?

I am a 38 year old woman who is now in her 15th week of pregnancy.  I've been diagnosed with vaso-vagal syndrome since the age of 31 but my first episode occured when I was 29.  I see that on this website, vaso-vagal syndrome is listed under neurocardiac problems.  This is interesting to me as everything I've read and have been told by the doctors is that vaso-vagal has nothing to do with my heart but everything to do with a malfunction of my vaso-vagal nerve.  Why is this associated with heart problems?  Also, since I am pregnant should I expect that these vaso-vagal fainting episodes will increase?  I've noticed that my blood pressure is very low ( 95/50) -- even for me.  I have only had a couple of episodes in the past few years and have prevented fainting each time.  I'm hoping that the episodes will decrease and not increase.

[somemonkey]

Its an autonomic problem. I have autonomic dysfunction too.