Thank you so much everyone for your great advice.
I took him up to the gp this afternoon and one look at him and did his temp 40.2, we were off to hospital.
I was still not sure what was wrong and the doctor had a look at him and said he has a viral infection and has swollen tonsils and red ears. So the AB's wont really help it out any.
Just have to keep giving him AB's till he feels better. So after all that at least we know pretty much what it is. She told me to do another wee sample just incase as UTI's can spread to the kidneys very fast in babies!

Anyway I am a bit grumpy at the GP for not noticing anything when she looked about half an hour before arriving at hosp! I pay so much money for them to say there is nothing we can do, I hope he feels better!!!