An update: I've been in contact with my electrophysiologist who said it looked like I was having SVTs in the ER, and he said SVTs look very similar to atrial flutter except when you look at something to do with the "p" waves, that something would be a determining factor that it's SVT.
He has increased my Flecainide to 150mg, twice a day, which is the maximum dose. The best guess is that the metoprolol IV-drip they gave me slowed my heart rate enough so that it reset itself and I didn't need Adenosine or a conversion. It's really anyone's guess and if/when it happens again, who knows what will work, but I sure won't wait 24+ hours to get to an emergency room!
I forgot to ask him why this latest episode on Sunday gave me sporadic "sweats" like hot flashes (I'm decades beyond hot flashes!)
I'm depressed and anxious and worried of course about my heart health. I'm going to start dieting again (I'm very fluffy!) and hope that weight loss will help with this heart thing, or perhaps I'll even be able to reduce my medication to a degree. The darn weight comes off so slowly...and I also stress eat and am kind of obsessed with eating soothing food.
A major source of my increased stress is living with the person I married who is not the most thoughtful or supportive person -- but that's another story for another time, and really, it's no wonder I stress-eat!
It seems that everything is changing now. Thanks for reading and I'd appreciate sending positive and calming thoughts my way!