Is my hamster dying or is she just tired?

a hamsters adverage age to live is 1-2 years old. as my hamsters got older they went on their wheel less. she could just be tired. as long as shes eating and drinking plenty then she should be okay, my hamsters lasted till the age of 4 and they stopped going on their wheel when they was around 2 . i think it might just be tiredness, if your concerned about her maybe you should phone a vet. but my personal opinion that there is nothing to worry about as long as she is eating and drinking lots :D