As 2/4 of the households got a positive test I'm assuming I had it too despite consistently testing negative.
Day 1 : thought my hayfever had gone crazy, stuffy nose lots of sneezing. Didn't enjoy my alcoholic drink.
Day 2-3 : stuffy nose, hayfever had miraculously vanished and I felt good (which is why I didn't query the negative test)
Day 4-5 : hayfever back, gross taste in mouth, tiring really easy (fine while doing an activity but as soon as I stopped I needed to sleep), some brain fog
Day 6-7 : more of days 4-5 with the added irritation of lots of mucus and an irritating cough
Day 8 onwards : improving every day, periods of brain fog and tiredness become less frequent. Taste still in mouth but either I'm getting used to it or it's starting to recede. Irritating cough still there, seems to be of a post nasal drip type. Occasional bouts of exhaustion but nothing to stop me doing what I normally would (just with a lot of distance between myself and anybody else). Can still run, albeit slightly slower, can still lift weights.