JJ is doing ok thank you, I had him on Rescue Remedy but he is now on antibiotics from the vet. I bought a feliway vapouriser as suggested and that is on all the time. The vets are totally baffled as he is eating well. We also think he has us at it a little as when he thinks we are not looking he eats like a healthy cat and cleans himself. Unfortunately he is still 'wetting' which could be stress. Unfortunately we are keeping him in which probably does not help him, but we cannot risk him running away as we need to monitor his intake of food, fluids and also his toilet habits. My husband made him a harness and we take him into the garden with us and just out generally. I believe he is making steady progress. Thank you for your concern, it is much appreciated.