I had a chinchilla that when he was a baby started tilting his head. Took him to the vet and he did have an ear infection. He was on antibiotics and baby gas drops for the gas. He had the tilt like 6mo after then one day he was fine. He was a awesome chin to like his dad he was a tov beige violet.
Anyways what I wanted to ask someone thought maybe my buck has this as he walks very week and falls over sometimes. I thought maybe he was just weak from being in a small cage before I got him. So I gave him the kitchen all to him self. It never got any better. He has had this sense I got him over 6mo ago and who knows how long before I got him. When he cleans himself he falls over. He eats and drinks fine. He is also 3 years old.