Heart - Are Premature atrial contractions dangerous?

Premature Atrial Contractions (PACs) occur when an area of the upper parts of the heart (the atria) signals the heart to contract (beat) slightly before it would occur in its normal pathway (called the Sinus Node.) Many people have premature beats and never know it. (My premature beats come from the lower part of the heart, the ventricles, so they are called premature ventricular contractions or PVCs.)
However, like you and me, some of us do sense these beats and when we do it can be very frustrating and worrisome to us.
You did the right thing by getting the tests to discover exactly what is going on and can rest easy that if you don't have other symptoms you can try to ignore them. If they do get worse or if you get dizzy you should call your doctors and let them know (as with anything making us dizzy, driving is not a good idea at that time.)
Just like anyone else, even people without premature beats, if you start having chest pain, or cool clammy or very pale or bluish skin, then you should call an ambulance.
Good luck to you; I'm finding it frustrating adapting to PVCs and hope you have an easier time with the PACs. Let us know how it goes, ok?