Quivering or vibrating arteries?

Hi!  I'm dealing with a new diagnosis of postural orthostatic tachycardia syndrome (POTS) a couple months after having an ablation for Wolff-Parkinson-White.  I'm still constantly having PVCs, chest pain, lightheadedness, shortness of breath, and right-side numbness/weakness.  

What's really scaring me though is a kind of quivering or vibrating feeling in my chest (I don't think it's A-fib though as it's happened when I've been on monitors before and there was no indication of that), that often leads to me feeling my pulse very strong in my right arm or sometimes left arm.  It's like the blood builds up or something and then "shoots" through to my arm.  I feel it going faster than my actual pulse, but it feels like pulsations.  It's especially noticeable when I'm lying down or trying to sleep.  It makes it hard to breath, causes chest pain, and I feel weak and scared.  I start to feel like I'm fading away when this is happening.    

Have you ever experienced anything like this?  Any help or encouragement would be so much appreciated...believe me!  Sorry if my description isn't so clear...I'm not thinking too straight these days.  Thanks again!

[MickeyBucks]

i have this same quivering. it's scares the **** out of me

[MickeyBucks]

and the funny thing is I was also diagnosed with pots syndrome