That seems like a good idea, many people do that for sexing hamsters actually (if they are untame) and it works wonders!!
Try to do it when she's awake and fully alert. That way she won't be as spooked by you squeezing her and will most likely tolerate it better
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Minion to Daisy, Lily, Harry and Peanut <3
Gone but never forgotten
Willow - 18:27 18th November 2016