Guessing 88 is your birth year, you may be in the time when reflux is becoming a problem. Anxiety + reflux + PVCs will sometimes allow your mind to think something is happening that is not. Have you tried Tums / Maalox / some other stomach remedy when your symptoms seem the worst? It may help and is not going to hurt. Best wishes and please report back.
Do you suffer from anxiety now or in the past and do you know the reason?