Thanks for your thoughtful reply, and for the research. Somehow with LC doing research is a lot more difficult now, as is most everything. Brain fog can be nasty. I'm in a really difficult spot right now. Nothing seems to give me any energy other than doing nothing for several days to weeks, and I'm hoping some modicum of energy will come back. Again, thanks. This area does have an MD who works with Long-COVID people. Although she is a neurologist by training, she was involved in COVID and Long-COVID research for several years in another state. I have an appointment scheduled with her for next month, which will be coming up soon.