Spud is nearly 2. Male, sterilised.
We are in a flat so he's a house cat. He has started howling all night to the point that I have to get up, go to the kitchen (where he "sleeps") and lie on the sofa with him. At which point he falls to sleep straightaway and I inch my way away from him (or sometimes not, as it's easier to just stay there all fucking night)
Dbil is a vet, and says he has "behavioural problems".
Any tips to break this vicious circle?