@CapricornFarm, I am so sorry to hear that you are dealing with yet another health problem. You neither need or deserve that but for what it's worth, I have an arrhythmia along with Paroxysmal Tachycardia since about 1978 and I know how scary it can be.
The fact that you set there for almost 5 hours without seeing a doctor is appalling! Whoever was doing triage didn't know what the H they were doing because cardiac always takes precedence. Unless they have somebody who just walked in that are bleeding from an artery or some other such severe trauma.
Feel better. Millions of people live normal lives with Afib and it could be behind the way you have been feeling lately. Hope they get it sorted out.