> their chests dont rattle at all unless they feed off their mother. the puppies wont settle unless they see their mam before they feed so im letting her feed them first ONLY because they are sick as soon as they leave her teats
Do you mean that they only rattle after feeding from mum and that then they regurgitate some of the milk - if that is so, it is because they are suckling too fast and they then rattle until they have regurgitated the excess milk. At this age when they are mobile they get it off their chests, it is usually only when the are fairly immobile that any excess milk stays on the chest, because they are not moving around they then go down with a chest infection. If they had a chest infection you would know because they would stop feeding, and curl up and sleep, and would be difficult to rouse.
I would give them their puppy porridge first, then let them feed off mum, they might not be so greedy. Rusks always gives pups the runs.