I realised that - which I have now edited my fingers work faster than my brain

I have no advice as such just give him some time & lots of patience and reward based treat training - like I said in a previous post I think he's just being pretty normal, although I have no experience myself of owning Westies I have known folk that have owned them, or do own them I grew up with one called Hetty she belonged to my uncle Cecil, used to love walking her she was lovely!