That's just awful Eric!
I believe many health issues people are having is due to the COVID vaccine. I never was anti-vax, but I had seizures three weeks after both vaccines and was diagnosed with epilepsy. No family history of epilepsy. The neurologist told me they don't know enough about the vax so he could not say it's due to that, but neither that it's not!
I now take anti-seizure meds and have been fine except for occasional spasms in my one hand.
I've also never heard of so many fit young men dying of cardio-related issues as is happening recently.
I pray your wife's health improves!