I think we had it in our house aswell. We all had a virus but all had different symptoms.
Ds (6) - temp over 40 for days that would not come down, went to the gp 3 times in 6 days and he had a viral ear, nose, throat and sinus infection. He hardly ate for a week and a half and was sleeping round the clock.
I was next then, a few days into his illness I woke up at night with severe pain in my throat, then came dizziness. I went to the gp - again it was viral. Then came the worst flu like illness I have ever experienced, I was completely wiped out for days. I then dizziness and stinging eyes for weeks and had a strange cough that stayed for 5 weeks.
Dp - had really bad headaches (he thought sinus headaches) that were so severe he came home from work (he works away) and went to the gp.
Baby- rattly chest. (Also saw the gp)
This was all within the space of 6 days.
It was pre lockdown but was after a colleague returned from China and was really ill for weeks with a flu like virus. He was in and out of the office during that time.
Subsequently the person I sit beside at work fell ill and was able to be tested - it came back positive.