Many thanks to everyone for these super helpful comments! So much to think about! I was able to connect with my HVAC guy, and he said he would recommend the Reme Halo UV light and a media air cleaner. (I've attached the pdf on the UV light in case anyone is interested. He quoted me a price of $850 for the light.) He also said the filter is very easy to change, and I could indeed do it myself, but he highly recommends I stay on a service contract to make sure everything is well maintained. I trust him very much. I recently had him install a Navien all-in-one on-demand tankless hot water heater and furnace, and it's given me such peace of mind to know that the water is not sitting in a big tank possibly collecting bacteria. I never did learn how to flush the water heater tank and it's weighed heavily on my mind since my diagnosis.

Sometimes it feels like there is a never-ending list of items to learn about and process! I'm super grateful to everyone on this forum for so generously sharing their questions, thoughts and guidance. I'm a firmer believer in the "collective intelligence" - we are all much smarter together than any one of us is alone.

May 2025 be a year in which we all experience an abundance of joy and peace even as we struggle with our ongoing health concerns.

Kind regards,
Jill