I suspect we had it in February. I've actually got an antibody test coming shortly as I discovered there's a nonprofit selling Roche kits at £39 and I want to know, although it may not prove anything I suppose as they say antibodies decline after a while.
Whatever this was, and it did fit the bill in a lot of ways, our 2 year old got it too. And he was extremely poorly. 101 organised an out of hours GP at the hospital after I called as son had slept 23/24 hours. Whimpering and shivering all the time, and yes, the cough. Whatever virus he had had triggered a massive ear infection and his eardrum ruptured - horrendous - but he quickly got better after that.
Partner had brought it home - I teased him for his 'man flu', then I caught it. I felt so guilty. And pretty awful too. I was pregnant at the time so attributed the fact that I couldn't climb stairs without stopping to being out of shape. I had the cough. My throat swelled to the point where I was considering calling the dr, then within an hour, a&e as it felt like my airway was closing completely, but after one last honey and lemon, it suddenly and very dramatically subsided, a bit like DS. I had pain in one thigh like I'd been shot for a week. Bouts of heart arrhythmia for weeks afterwards but they got fewer and further between - not had one in a while now. Beautiful baby girl born in June - all fine.
Partner had cough, shaking, body pains, sky high fever, terrible throat - whole shebbang like son. They were both far iller than me - I could actually have carried on if I'd had to, but I stayed home as this was very obviously a nasty virus you didn't want to pass on. I do wonder if them had among ibuprofen made it worse for them. I couldn't because I was pregnant. Blinding headache with it too. Partner had kidney pain for several weeks afterwards.
Anyway, the point is, having gabbled on for a while... I'm not sure I can remember... we were all ill at the same time but obviously didn't know what it was so you just get on with it don't you? But I did avoid my parents and to be honest, going out in general. Son actually never went back to nursery as by the time he'd recovered we were terrified of him getting covid, whereas I think now we'd already had it, although I am still keeping him home now with a newborn, irrespective of the antibody result. I think what I'm trying to say in a long, garbled, and very speculative way is, if that was covid, our 2 year old had it as bad, if not worse, than any of us despite being pretty healthy on the whole. If one of us got it again, they'd have isolate in the house (parents I mean, obviously) as we just don't have any childcare options at all.