The parliamentary event took place just over a month ago. It seems unthinkable now that I should have gone up to London on a train, met other lung sufferers and members of the British Lung Foundation in a busy café and took part in the busy event itself, with some people still shaking hands. I even went on the underground back to Victoria.

Now COVID has spreaded around this country and today we have very high levels of pollution. There must be some irony here.