So many venues are using temperature tests to assure themselves visitors are covid free, from the GPs to Comedy clubs with restaurant and pubs in between.
My temperature hovers around 34-35 degrees - so I could have a significantly raised temperature for me, and still be allowed in. I asked a colleague (professional medical background) and they assured me its not that unusual.
I've only been challenged on my low temperature a couple of times out of maybe 30 entry checks - I assure people that I haven't died of hypothermia and always managed to get in so far.