It's at the cellular level.They've never found anything with me either.I did however at one point manage to get Pnuemonia,Bronchitus,Shingles, AND another hit from covid.One doctor gave me a dosage of prednizone.Felt really good to 'be normal' again,even if it was only like that for a week or so.That was last year.
Following Dr Paul Anderson o0n Youtube now for at least three years.He knows what's happening with the reasons why it's happening.He's awesome.I feel so much better now...only 'some' damage needing to be corrected.And I'm positive his regimes are legit.