I've just posted something similar to this on another forum, but thought this might be the best place for it!
I’ve come down with a horrible cold, streaming nose and sore throat, the first I’ve had in 3 years - and am feeling rotten.
I did a lateral flow test earlier and it was negative - my temperature was also normal.
Someone suggested that I should get a PCR test, but when I filled in the form on the gov.uk site, it said I wasn't eligible, because I don't have a continuous cough, loss of taste/smell or a temp.
So what should I do - is a LFT enough in my situation or do I need a PCR? And if the latter, should I just lie and pretend I have those symptoms on the gov.uk site, even though I actually don't? 
Thanks!!