Thanks, took her to the vets this evening, her temperature was normal but she felt hot and clammy and generally looked very sorry for herself. Vet said she'd got a very sore throat possibly from the coughing and sneezing but thinks she's got an allergy to something. She's had an anti-inflammatory and anti-biotic jab and is on anti-histamines for 3 days. She told me a cat can have piriton just like us but obviously smaller dose - i didn't realise that!!
Anyway she's asleep at the moment, she's back at the vets in 3 days for a check up