Is my Dwarf hamster Hurt?

i have two dwarf hamsters. both are girls and one of them got flung in the air by mistake. now we dont see her as much as we used to because she stays in her hut sleeping more and doesnt eat and sip from her bottle as much. the other one is always active and more social. is it their different personality. or is she hurt? i got them from Petco. They are not old hamsters. The employee for the rodents said they were young.