I have a lovely rabbit named Ernest, he is quite old now, and within the last few months he has started drinking excessively. The original cause for this was a UTI that he had and was treated. However, the drinking continued.
He has had detailed urine samples and blood tests with no irregularities found and he is otherwise entirely healthy and happy.
He does have quite severe OCD and PTSD from the home life he had before we adopted him. Usually his OCD is harmless, falling under the behaviour of excessive cleaning, licking his paws three times before standing up, walking the exact same route to his food bowl, and other little things.
I am worried that the excessive drinking, originally caused by the UTI, has resulted in an obsessive loop that I don’t know how to break.
He drinks, he goes to the toilet, he eats more hay, dries his mouth out and then repeats.
I can’t help but feel it is wrong to deprive him of water or hay if he wants them, but I have no idea how to correct this behaviour either.
Does anyone have anything to suggest?