"LongCovid is new"
Post-viral diseases aren't new.
Dysautonomia isn't new.
ME/CFS isn't new.
Endothelial dysfunction isn't new.
MCAS isn't new.
Auto-immune issues aren't new.
Chronic inflammation isn't new.
POTS isn't new.
PEM isn't new.
Blood clots aren't new.
Tinnitus isn't new.
Mitochondrial dysfunction isn't new.
Migraine isn't new.