So I’ll try and keep this straight forward. Our chihuahua 7 years old very active suddenly on a walk stopped and wouldn’t move and since then wouldn’t walk upstairs or jump. His eye came up red too. Vet suggested it was a neurological disorder but without a 3 grand MRI couldn’t be sure. He’s been on steroids 2 weeks and a dose of antibiotics but with no a huge amount of improvement. Has anyone else had any experience of this? Why it comes on so suddenly? They said he had a temperature too. It just seems such a huge change in him from walking to almost disabled. He’s definitely worse in the morning. Does anyone have any suggestions or recommendations? Do neurological disorders come in like this? We have been given very little information. Thank you in advance.