Thank you so much for all your help and advice.

I have been in touch with a behavourist and they have also given me some suggestions, which I'm now putting in place.

I have increased their exercise throughout the day and starting leaving the TV on during the afternoon. I think the changing of the clock has really thrown them out of their routine, which hasn't helped.

I have been in touch with our neighbours and explained that we are trying all these things to help the situation and they seem okay.

Again thank you so much for all your suggestions.

Sorry for the late reply, I used the internet for a local trainer/behavourist. I called them first and asked what sort of thing they could help with (before I told him my problem). I think if you speak to them first you can decide on whether they can help you with your problem, there is no point getting them in if they can't!