It certainly is the breathlessness which gets you. I would say, hand on heart that I contracted Covid last December while in hospital for something else, where two individuals in a bay opposite were coughing and spluttering dreadfully as I lay listening and no doubt breathing in their germs.
A sudden rush of nursing staff, masked, gowned and gloved hurriedly moved me from where I was to a different area of the ward where I encountered more coughing and spluttering Just after Christmas and at home about a week or so later my nose began to run like a tap as I had to plug my nostrils with tissue.
On the 30th of December last year I'd had an appt./ follow- up at the surgery to see the GP but had to cancel because I felt so ill. Air wasn't getting into my lungs so was affecting the circulation and I found myself unable to walk and the legs felt as though I was standing in concrete. Then the cough which was like whooping cough as I tried to draw breath in which to cough. Hanging out of the bedroom window for air----in the middle of winter !
I didn't phone anyone and thought for sure I was on my last as it was no ordinary cold or flu----I'd never had coughs or breathlessness. Paracetamol, honey, lemon and black rum was my medicine. Thankfully the cough didn't last, but the weakness was horrible and it wasn't until June of this year that I felt anything like normal. My lungs certainly aren't as they were though.
Thinking back, if I was to get that thing again I'd be dead for sure. I surprised myself for getting over it albeit best part of this year but I know it would have killed the weakest and understand why so many have died.
How lucky I was, being a smoker as well ! Just shows you.
Mell, I'm so glad that your husband is progressing but he'll feel as though he's been through the mangle for a while yet as the lungs/ circulation is badly affected. It's a tiring illness with only rest as part of the cure. I wouldn't wish it on anyone.