I'm very happy to hear her COVID-19 test came back negative... excellent news.
I know you've mentioned that Faith was struggling with something; based on what I occasionally hear from a couple of friends who are ER nurses (and having had this issue) one possibility might have been a mild panic attack? It seems these are spiking as well, and hospitals are seeing an increase in "can't breathe, think I'm having a heart attack" admissions.
Not offering a diagnosis here, just tossing out a possibility.
Be well!
=^..^=