Tachy/ brady SVT palpitations associated with autoimmune, autonomic is

@slkanowitz is your blood pressure low too? I am not able to take beta blockers due to low bp.

I have episodes of afib so a different problem, but I have been taking magnesium for years and also drink low sodium V-8 for its high potassium level. I got this info from a forum and also from the book "The Afib Cure" by two cardiologists which may apply to you as well.

I don't eat after 5 or 6 and am careful about not reclining after eating. Of course stress can play a role for me as well so walking and tai chi help that.

Do you have a Kardia device or smart watch? It will help with MD's to have a record. Assume you do since you know it is SVT and bradycardia.

These are two distinct, and quite disparat, problems, although they might be linked in a way that only the experts understand. I am far from an expert....believe me. But I do read all I can about the electrically disordered heart, not so much about chemical imbalances such as hyponatremia or hypokalemia (low sodium and low potassium respectively), and I know that insufficiency of magnesium is also a distinct concern in some patients. As windyshores avers, there are people who find out that they seem to 'dump' magnesium, or rather their kidneys do, and they must keep up the intake in order to maintain a reasonable level in the body's needed range.

Before supplementing, you might want to learn of any recent blood panels where these are listed. If they don't exist, ask for a blood assay to determine their levels, but it should also include a determination of troponin, an enzyme produced when the myocardium is under duress, such as during a heart attack or even during an arrhythmia.

SVT and atrial fibrillation are 'kissing' cousins. I don't mean to dignify either with that sweet picture (ha ha!), but to let you know that they are NOT unrelated. I had only one detected run of SVT during a stress test with contrast dye on a treadmill. The attending said I had a short interval near the end, at my max VO2, My point is that I was being tested for ischemia, and that because I had developed atrial fibrillation. I didn't fibrillate during the test, which is a mystery for me. But I did show a burst of SVT, and I was very fit at the time with good cardiac function. SVT is a rapid rate, but in a predictable and recognizable rhythm. Atrial fibrillation is different. The interval between the QRS complexes varies noticeably when the heart is fibrillating. This means the atrium is beating most of the time out of sequence because it's not just a rapid sequence. The result is palpitations which feel like pauses and then thumping in the chest wall that are most disconcerting.