My Mum had breast cancer and ended up having several lymph nodes taken out which affected her immune system in a big way. Whenever she got a cold, it would move to her lungs, get a lot worse and she would need to take steroids to help her immune system fight it. I can only assume that this would have been labelled as 'covid19' if she was still alive now. Sadly she died from lung cancer after beating breast cancer. Sad for your loss. Cancer is something that we shouldn't be getting, it was very rare to have it decades ago..