To wonder if ds had Covid?

[Thewholeshackshimmy]

Last week 15 year old ds came out with cold symptoms (sore throat, sneezing lots, bloacked nose, raspy sounding voice, normal,temperature, no cough).
Of course the first thing that went through my mind was Covid. He did 4 LFT (Wed-Sat) all negative. So thought great, just a summer cold (he does pick up colds more than the rest of us in the family).
However, since looking on the coronavirus virus section here on MN, I see that several people have had consecutive negative LFT but test positive with a PCR, now I am a bit worried.
He went back to school yesterday (and had also tested negative on the school’s LFT) but still has a blocked nose and raspy sounding throat, no temperature though and feels ok.
I am worrying now that it still could be Covid.
I think I’m going to have to pop him down to our PCR test centre.
Is it common to test negative on several LFT yet still actually have Covid?
I have also done LFT on myself and 13 year old dd (she also had one at school yesterday) and we are negative too.
All test have been the newer, nose only tests.

Yes. Here, Dc had a sore throat from Tuesday, but tested negative on LFT until Friday.

I think with symptoms it was probably best at the time to do a PCR rather than a LFT

It's very very common that lft tests are negative but pcr tests are negative. But it could well just be a cold. When did his symptoms start? Is it worth testing now if it's been near let 10 days already? Saying that pcr results usually come back quickly!

There are definitely other colds going around too. We have all had one recently, with symptoms you describe and we have all had negative PCR.

My friend is currently really sick with PCR confirmed Covid. Not once tested positive on a LTF

Symptoms = PCR
No symptoms = LFF

LFT!*