The highest my meter recorded without maxing out and displaying 'HI' was 33.6.
It felt like I had bad sinus pain,it was dark at the time and I was seeing Halo's around all the street lights,I was VERY thirsty and drank a whole 4 pint container of cold milk straight from the fridge in one go and my wife told me I was very snappy and defensive without me realising it and I was talking in riddles.I also felt very warm even though it was a frosty evening.