hi

have you thought about homeopathic, there is a chemist bond st london they have a vet who gives advice. cant remember name, but a friend had a great dane it kept collapsing after exercise, she took it to a vet who told her it was in the breed they have a small heart and really couldnt help she got in touch with this chemist and they sent by post something to add to the dogs water, it lived to 8 years old. if i can remember the name,a good recomendation is that the queen uses them for her corgis