Thank you for your advice. He has aurinary tract infection and is on medication for this. He has had severial attacts starting from a Kitten. His last attact was about 5 years ago. His behavour this time is unual for him.
He has access to the garden via a cat door, so is not confined to the house.
As you mentioned with your cat, he did wet on the bed one night which he has never done before. His brother, which we lost 10 days ago, both slept on my bed side by side. Myself I am convinced he misses his brother. We are hoping to replace the cat shortly. Thank you again for you help. Will try out some of you suggestions.