Liz Buchanan BVSc MRCVS
Hello - your hamster really does sound to be very ill. Until recently, vets haven't known great amounts about hamster medicine. Funding is limited for research in the area because hamsters have a limited lifespan and many owners a limited budget for them. Many vets do not have the experience or knowledge to diagnose cardiomyopathy, for example. However, there are specialists in the field and your vet will know who they can consult should they need a second opinion. Please do let us know if you have any success and how, although it may be that the prognosis is guarded; hamsters are a prey species and when they start to look obviously poorly, the disease is often quite advanced.