Reeva, I'm crossing my fingers too. *daumendrück*
I've also done a little reading up, but there are so many possible causes and such a wide range of severity that I don't want to guess about anything, so I'll just share a few links in case that's any use.https://www.mayoclinic.org/symptoms/low-white...https://www.mayoclinic.org/symptoms/neutropen...https://www.webmd.com/a-to-z-guides/neutropen...https://www.merckmanuals.com/professional/hem...
Even just a web search is a bit hard, because so many hits are related to chemotherapy. I was only able to gather a few impressions (ohne Gewähr):
• mild levels of low white cells are not uncommon and can come and go for various reasons;
• if you don't have fever you may not need to worry;
• if you do develop a fever you should see a doctor immediately, and you might need IV antibiotics;
• you should avoid possible sources of infection (pets, children, crowds) and practice careful hygiene (which may actually be easier during the pandemic, since we're all doing that);
• some ethnic groups seem to have generally lower white-cell levels, for reasons that may be related to malaria, so not all 'normal' levels are the same for all people
• there is some preliminary evidence suggesting that low white cells may be a symptom of a previous Covid infection
Just anecdotally, we've had a couple of friends who had low white-cell counts, both elderly (over 90), and so far they haven't really been able to identify a cause. One of them had pneumonia and other symptoms last spring and never tested positive for Covid, but also tried several antibiotics without much response. He eventually seemed to get better on his own, but he has so many health complications and chronic conditions that it's hard to say. The other has been seeing the doctor more frequently and I believe even had a blood transfusion a couple of weeks ago, evidently because they couldn't really think of anything else to do.
Also anecdotally, we've heard of other cases of pneumonia that supposedly tested negative for Covid but were nevertheless resistant to the usual treatments. I don't know what to think about that -- whether it means some cases might have been undiagnosed Covid with false-negative tests, or whether the cases might be related to other stories we've seen in the medical news, such as a certain rise in antibiotic-resistant illnesses, especially in hospitals and nursing homes, where all the protocols now focus so much on Covid that they may not be paying as much attention to the older protocols on hygiene and infection control. Or it could be just that statistically, as behavior like masking and distancing reduces all the usual infections, the only infections that persist are the unusual ones.
Sorry, all that is probably too much and too OT.
If you feel okay and don't have fever, that seems to be a good sign. I do think you're right that it will be good to simply be able to see a doctor, get a physical exam, and ask questions. (-: