Covid is causing a sharp rise in cases of postural orthostatic tachycardia syndrome, a disorder of the autonomic nervous system that causes rapid heart rate, fainting and dizziness.

February 27, 2023 at 6:00 a.m. EST
A life-changing condition called POTS, which can cause fainting, irregular heartbeats and dizziness, particularly among young women, appears to be on the rise as a result of the coronavirus pandemic.
But the condition isn’t well understood, and many patients are dismissed as having anxiety, delaying diagnosis. Once diagnosed, many patients face waiting lists as long as two years to get treatment from specialists.
POTS stands for postural orthostatic tachycardia syndrome, a disorder of the autonomic nervous system, which regulates involuntary functions like heart rate, blood pressure and digestion.
https://www.washingtonpost.com/wellness/2023/02/27/pots-heart-fainting-long-covid/