@sb4ca
My teen son has a heart defect, Reynauds syndrome, and POTS like symptoms. He never had the Covid shots but had Covid 2 times. I understand that Covid can damage the nervous system.

My son’s cardiologist also suggested super hydration with electrolytes included (like LMNT brand) to help insure absorption and retention to maintain blood pressure and also eat salty snacks. 🙂 He was also told to make sure to get sleep and exercise plus limit video games/screen time. That is really hard for him. 😉