He has been sick coming up on 3 weeks now. Multiple trips to the vet, multiple antibiotics, steroids, multiple blood tests, urine test, X-rays. Still no real answer. Vet feels it is a virus of some kind that has now led to vertigo. He spent the entire day at the vets yesterday for tests and fluids. On the bright side his fever was down for the first time in 3 weeks and he was retested for feline leukaemia and feline hiv and again negative so the vet feels this is definitely not it. He had also lost some weight, but we regained 0.2 pounds and it was stable yesterday. He is only 1.5 years old. I hope this means he is turning the corner.