Thank you for posting (again), Krav. The unpredictability of our mRNA C19 vaccine-caused Afib (mine started with the 2nd mRNA C19 Moderna booster...with incident myocarditis)...is maddening. Yes, environment (namely, diet...including supplementation) is critical in management of & recovery from myocarditis-caused Afib. I've not had subsequent cardiac MRIs but in my consultations with who I regard as a progressive cardiologic researcher (not a clinician) I/we believe I have some form of left ventricular dysfunction (causing my unpredictable Afib). I am unwilling to invest the time, effort, & money that would be required to fully pursue this or some other diagnosis. I recorded--with my Apple Watch 8, my first daytime incident Afib...on Tuesday morning. I slept very poorly Monday night (as indicated in my Apple Watch, Fibit Charge 4, & Garmin Venu 2S data). The Garmin data indicated inexplicable high stress levels throughout my sleep--even as I slept without awakening. I awoke in an awful state & observed my pulse racing to an unusually high level , 80-90 bpm, sometimes approaching 100. My average RHR is 45--so this got my attention. Then I took an ECG with my Apple Watch--& it recorded Afib! I've begun keeping a diary as I search for answers. In addition to the stressful sleep (my Garmin Body Battery--a metric that Garmin has developed that combines HRV with RHR & saturated oxygen, was only...21--out of 100 (I usually awake with a 75-85 score, upon awakening), I noted that I had eaten about 1/3 of a bag of salty sweet potato tortilla chips Monday evening. In addition, I have been trying out the Oura ring (since the myocarditis I have become obsessed with collecting health--including sleep, data) & on Monday I tried the temporary Oura ring on a new finger--my left ring finger, with a very tight, constricting fit (which was very uncomfortable). Seems irrelevant but I do not ordinarily wear a ring (of any kind) & Tuesday I came upon a peer-reviewed paper observing that wearing a metal ring on the 4th or 5th finger can result in elevated...troponin I levels! Consistent with my dysfinction in my left ventricle. Here's the abstract to the paper: https://pubmed.ncbi.nlm.nih.gov/20578646/. So I am returning the Oura ring (sticking with my Garmin, Apple Watch, & Fitbit). At any rate, since the myocarditis I am suddenly & acutely sensitive to salt intake. After the Tuesday incident Afib, I am eliminating the salty chips (I stopped adding salt to my food after the myocarditis diagnosis). And as I do continue to supplement with MCT/caprylic acid/Bulletproof Brain Octane twice a day, which acts as a keto supplement (the kidneys excrete more sodium with either a keto diet and/or keto supplementation & there is a delicate balance between sodium and other electrolytes, particularly magnesium & potassium). Turns out I learned that I was slightly hypokalemic, which could well be a proximate cause of my paroxysmal Afib. So I have to be very mindful of my electrolytes. I drink water with added electrolytes (sodium, magnesium, calcium, & potassium) throughout the day. In addition, I supplement with magnesium taurate, 1500 mg per day (across 3 doses) & potassium orotate (600 mg across 4 doses). I continue to work out but realize I may have exacerbated the focal inflammation caused by the myocarditis (following the bivalent Modern mRNA booster)...by continuing to exercise in the period following onset & diagnosis of myocarditis. Typical recovery includes at least 2 months without intense exercise. So I may have inadvertently exacerbated the damage caused by the mRNA-caused bivalent booster (both the S1/spike protein & the lipid nano particles are likely culprits in producing the widespread distribution of the S1 mRNA & lipid shell...resulting in the pro-inflammatory cascade...particularly in the heart & other organs). Since the myocarditis diagnosis, I also supplement with nattokinase & serrapeptase...to target degradation of remaining S1 protein & to dissolve blood clots. Two weeks ago when I realized my error of over-exercising--after being lectured by the progressive cardiologic researcher, I reduced my extreme fitness routines (e.g., Insanity Max Interval Circuit) to half the time & half intensity (e.g., Beach Body T-25 routines; 25 minutes each). And I deliberately lower my intensity, bring my average heart rate down from 137-140 bpm ( with 200-205 bpm peaks) to 120 bpm (with 155-160 peaks). Going to bed now. I could go on & on. Praying for a night free from Afib (I've reactivated my FitBit Afib tracking algorithm...after having turned it off last weekend to rely on the weekly Afib summary provided by the Apple Watch 8). Let's keep sharing--& be sure to wear your N95 respirator in congregate settings. No more mRNA vaccines for me!!!