My 3rd old lab has had a wonderful active and happy life. He has now developed a generalised fear of noises to the point he is too scared to go into the garden or out of the car. Its very upsetting and I just want to help him get back to his happy self. He is clearly very depressed at not being able to get his normal big happy walks or play in his garden. He seems paralyzed with fear. Im desparate for help.