Went through hell getting my medical renewed thanks to COVID. My VA doc had me go to the ER when my oximeter indicated a really low O2 number combined with high fever. Of course I had COVID, but they sent me home 2 hours later as per the calibrated machines, my O2 levels were fine.
FAA wanted medical records, tests, and lots of paperwork proving I was healthy enough to still fly afterwards. Thankfully, the Doc (not my AME) was able to write a letter that said I was released from the Hospital shortly after they confirmed I wasn't about to die. She and I had spoken about 2 weeks later on the phone and since I had no more symptoms they never asked me to go back. So after getting her notes forwarded to the FAA, about 3 weeks later they finally approved my Medical.
Just make sure you tell them if you were seen for it (besides getting tested) and if you required follow up.