Besides shortness of breath and chronic fatigue, research has shown how COVID can affect other systems in the body. One such discovery is that the autonomic nervous system becomes disrupted as a result of this disease.
For example, the sympathetic nervous system governs the “fight of flight” response and this shows that is may be off balance. Triggering this system tends to lead to heart racing and shortness of breath. Many are suggesting that COVID-19 is setting off the sympathetic system which is leading to some of the most common lingering effects.