@lmspencerpac - Lindsay, I’m sorry you still are really too sick to return to work. I assume you are out on disability. Do you have help with the kids?
Above advice on Vit D is good. I read daily about this being a factor in severity of illness. When you feel your heart racing at night- what’s your heart rate like? How long does it last? Also, make sure you hydrate well. You lose a lot of fluids and electrolytes with fever. Last year I had the flu and pneumonia and was hospitalized. I was severely dehydrated and even after I was discharged and my weight had not returned to what I would expect. Being a PA you know this, but it sneaks up on you. Pedialyte or similar would help. You should also consider going to ER or similar for hydration- filling up the tank!
In my opinion, you should be examined on a regular basis- to make sure heart, lungs and kidneys function well. It is difficult to take care of oneself when you are so sick. Please, stay in touch and post anytime.