It's happened to me last week and at least 12 people I know of.

All of us coughing, fatigued and have no taste or smell. I did 5 LFT all positive - 2 PCRs both negative.

Test and Trace have contacted my mate today who has exactly the same symptoms and outcomes on his testing and said its definitely Covid and he needs to isolate. Suggested its probably a new strain that isn't getting picked up by the PCR. Said its the no taste and smell thats the give away.

All this in the wider Pontypridd area.