So, it turned out that the bacteria (or virii) were just lulling me into a false sense of security, and instead of the worst being over last weekend, ameliorated by having a very good friend for company & tea making, they were just biding their time.
After J left on Sunday I curled up & snoozed, expecting to me more-or-less fit for purpose by Monday. Instead, by Monday morning I was at the stage where I took 3 attempts to succussfully make a cup of tea, (it seems that both tea & hot water play important roles in the process) and was coughing up half a lung every few minutes.
So I decided that I probably wasn't safe to drive a car, and that any advice I might be able to give my clients in between coughing all over them would probably not be very dependable, and went back to bed until Wednesday.
The rest of the week passed in a bit of a blur, as getting to work, getting home, and occasionally eating something took up all of my energy.
However, I do now appear to be on the mend, and I'm hoeful that I shall successfully see off this chest infection on the strength of my own immune system alone, no antibiotics.
Today, the sun is shining, I have spent some time in the garden, alternately sitting in the sun & enjoying the unusual lack of aeroplane noises & vapour trails, and getting my hands dirty planting out baby tomato and cauliflower plants. The fact that aftr planting 3 tomato seedlings I need to sit down and get my breath back is a hint that this bug is still out to get me, but sitting down to rest in the sunshine, with no sound but birdsong and bumbling bees is no hardship.
And tonight there will be a new episode of 'Dr Who', with Daleks & Winston Churchill...