I agree with what racinghamster has said and the sad fact is that when I went to purchase my dwarf hamster I had the intentions of having 2 and thankfully the lovely woman told me tat it's a bad idea because even though some hamsters maybe able to live together it may not last long before they start fighting. throughout hamster owning I have learned hamsters aren't really pack animals they want their owners to themselves!
hope she is okay keep us updated on how she is doing xx