I am very sorry to hear that, Christina.
I hope your husband gets better soon. His situation sounds immensely stressful on the both of you.
For what it's worth, I think you've been doing an excellent job of hanging in there for the past 3 weeks, especially given your own stressors brought about by chronic pain flare ups and COVID-19. You're very caring and selfless, and your husband and family are very lucky to have you and your supportive care. Best wishes.