thanks....so hard to understand when this keep happening. Someone said I could have an adrenal problem
What you describe sounds like a common episode of PVCs made worse with anxiety. They checked you out pretty well at the ER and found nothing, you should be reassured by that. It is not very likely that your heart has developed a dangerous problem in one year without other symptoms such as chest pain or shortness of breath on a regular basis.
You should follow up with your doctor to be safe, but I'm guessing you're fine, just try to relax as these episodes happen to many of us here, I can personally relate.
Hope this helps,
Jon