Hi all. New member looking for advice. My daughters 4 month old guinea is breathing really heavily and laboured. No other symptoms and eating drinking pooing as usual. She is a little lethargic but still running about the garden when out in her run. We've been to a vet twice who diagnosed a respiratory infection and are now on second lot of antibiotics but her breathing is not improving. Other than looking a bit uncomfortable she seems totally happy, pain free and still enjoying cuddles etc and munching up her treats. Any ideas of anything else ok could be? Thanks