Thank you for that info funkyfish, really helpful stuff :-)))
Vet asked when he examined him whether he had any cough or vomiting, and thankfully I could answer no. But that isnt to say there isnt fluid, just not affecting him too badly yet.
At times he is bouncing off the walls like normal, barking at the geese and horses, but although the drug is helping a lot it isnt completely eradicating symptoms. But at the moment quality of life is still definitely good, when it isnt, I will have to be the brave one :-(