She says she wants to wants to find herself, and wants to pause the relationship for a while, am I overthinking or is this a sign of something bad?

Hello, so my girlfriend told me that recently she doesn't feel like herself, like it's a instinct feeling that she's not like her usual self (for example her name is Jessie and she said "I feel so lost and I don't feel like Jessie") I searched online and saw that usually this means that they lost interest in you. Is this the case? I am really worried.

She says she wants to wants to find herself, and wants to pause the relationship for a while, am I overthinking or is this a sign of something bad?
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