THIS IS MEDICALLY IMPORTANT. Esp for USA residents.
IF YOU ARE COVID19 POSITIVE and told to treat at home. It's IMPORTANT to have your blood oxygen levels tested periodically.
If you don't have a portable oximeter (O2 testing module) you should get one.

Walgreens has them in store and online, other box stores might too. They run $40 to $60 depending on the brand and features.
https://www.walgreens.com/store/c/walgreens-fingertip-pulse-oximeter/ID=prod6089451
Amazon sells them too.

Using them is fairly simple, you've probably seen them used at your last checkup. It clips on the tip of the finger and measures oxygen levels in the blood and heart rate.
It is IMPORTANT to measure O2 saturation with COVID bc lungs become compromised.

Oxygen loss gets easily masked in pneumonia scenarios because the patient is already coughing, dizzy, and short of breath. But lingering headaches, confusion, and feeling perpetually out of breath or even feeling excessively anxious can be symptoms of hypoxemia.

Oxygen saturation dropping is the first sign of the lungs being compromised and when to call a doctor for more aggressive treatment.
You may not HAVE TO be hospitalized, but treating it EARLY increases your chances of recovery.

O2 saturation drops can come on in the final stages of COVID after the lung cells are damaged. Low oxygen makes your heart pump harder and can put a strain on the cardiovascular system.
You go from having a lung problem to having a heart problem.

So PLEASE. While we are all trying to survive this nightmare, take whatever steps you can to be your own optimum home care nurse.
And BE SURE to stay in touch with your Doctor and don't hesitate to call 911 if you feel like things have gotten worse.