Being a good health detective is a must because doctors don't have the time to figure it all out for you.
I would love to know what other meds you are on, cat mom. Have you gone on sites that give reasons for sodium to drop. I have and it's worth delving into it all (with a positive attitude of "I'm going to figure this out and beat this, damnit!".
That's how I am working on my 31 rounds of antibiotics in 3 years 3 months issue...and so far, touch wood, with lots of lifestyle changes and a few supplements, a new kind of estrogen (only 2 weeks in however) no return of the bladder infections. Usually by now, I am into the next UTI so I am very encouraged...and even proud of myself.
And as I told you, with exercise I beat my Afib. The cardiologist said it was impossible and that it would return (after almost 2 years on strong beta blockers) and as long as I kept FAR away from stimulants AND exercised, I have been fine...for 24 years now!
On my own with plenty of research, I also cured hives that were so bad that they required antihistamines. The 3 specialists I saw said no one knows why people get hives and that I would likely have to take antihistamines for the rest of my life. I hunted for a cure and finally I found it. A local health store owner who is also a licensed pharmacist, gave me the solution. What was it? Eliminating carbs (so basically meat, eggs, veggies...which today is a kept diet) and about 6 weeks later reintroducing rice, bread, potatoes, pasta very slowly and not much of it. Even now if I have something very sweet like a birthday cake, I will start to itch.
So I HIGHLY recommend spending a lot of time hunting and collecting information. Copy and paste in Word and formulate questions you can ask your pharmacist, doctor and eventually cardiologist.
Dizziness and weakness ARE side effects of Eliquis (look it up) and didn't those symptoms start once you started taking that drug? Or when you had your 'episodes', were you also experiencing weakness and dizziness? I am almost sure you wrote that the symptoms coincided with the start of the Eliquis...
Think positively like you are in a confusing maze and on your way to reaching the end of it and coming out into the open where the sun, clarity and fresh air await you. You can do it cat mom!