Thanks, took him to the vet and he had blades of grass stuck in his nasal passage. The vet operated to take them out, (they were huge) and he's now a different moggy. Didn't like the thermometer up his bottom though.
Just got home from work to find my cat hiding in a corner looking really unhappy. He's ok for me to pick him up and even purrs when I stroke him but he just keeps giving these little half yawns every so often. was wondering if it's because the bengal cat over the road has been bullying him...