Cat Urine Problem

[Teresa Pawcats]

Think you really need to take Ollie to the vets for a check up. You are certainly not being paranoid.
Hopefully the vet will be able to sort it.

[puggy1975 Zoe]

My cat Ollie has recently developed darker coloured urine in his litter and it also has a really strong smell of ammonia.

I use worlds best litter and usually it changes to a darker golden colour but now when he pees it is more like a brown colour and smells very strongly of ammonia.

Ollie and Tyler both use the same litter tray and Tylers pee is still same.

I am concerned there may be something wrong or am i just being paranoid?

Thanks in advance for any help

Zoe