My Staffy just isnt the same

My Staffy George is 7 years old and we have had him since a puppy recently he has altered at bed time he had started to nut the kitchen door with his head, causing mayhem in our house hold. I have shouted and let him out and sat with him but I just don't know what's wrong???? I am really worried and scared to take him to the vet's in case they think I am silly? He is eating and drinking as normal. Can anyone help??

could some thing be scaring him?is he walked in the evenings?

also if some thing is scaring him,not being funny but if your shouting at him,its not helping the situation at all.

I think a vet visit is your first port of call. Has anything happened lately: loud noises, etc?

Hi, please come and introduce yourself here...

https://staffy-bull-terrier.niceboard.com/f7-new-member-introductions

Can you think of anything that may have frightened him at night in the recent past? Can you leave the door open for him so that he can wander around a little?