does anyone know of a backman/woman who treats animals in cheshire n.wales area?

Stuart McGregor is an Osteopath who teaches canine osteopath.  He should be able to give you a contact in your part of the country.
http://www.osteopathy.org.uk/find_osteo/find_osteo_details.php?pid=958

What type of animals? You could try the McTimoney website?

dog