Oh no! So scary! My son got Covid last month and he was almost sent to the hospital due to not being able to breathe well. The EMTs said that his blood oxygen levels were ok, but please to get an Oximeter. I was like...what? It was because the hospitals around us were full of Covid patients. My daughter got it 3 times since January. So far, my husband and I havent gotten it. *knock on wood*. I am really concerned about my daughter because I read that with each reinfection, it destroys more T-cells. She is only 25 years old and has her whole life ahead of her.
Sounds like you both are experiencing LongCovid.