Is she on her period or is she just ignoring me?

I’ve been talking to this girl for a while now. A few days ago (maybe 5 days ago I don’t remember) she was telling me how she misses me and when we FaceTimed she flirted a lot. The past three days she has been sleeping a lot and texting me less often. Today the only message she sent me was how she was about to throw up. Is she on her period or is she just ignoring and what should I do?
Is she on her period or is she just ignoring me?
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