Had symptoms March 2020, similar to bad flu, sick, diarrhoea, weak, lethargy and shivering in hot shower.
I thought it was flu but for the dry cough that followed like nothing I had before.
I stayed in and sweated it out.
Eight months later, back in the UK, my blood donation team were asking from anyone who had covid, I went along buy my antibodies were so low they didn't take any.
Don't worry, at the peak in the UK, deaths were at 3% of those who tested positive.
Get jabbed at earliest opportunity.
Good luck to your wife.
As a side note, my case your case and your wife's will not be included in the Thai stats, I wonder how many others just sweat it out without reporting.