A. This concerns me. Cats that have twitching is a neurological symptom and can be a sign of pain. Also I am concerned about the yarn she could have swallowed. Yarn and thread can cause serious GI complications and a life threatening emergency for your cat. I highly recommend that you take your kitty to a vet asap for a complete evaluation to ensure she doesn't have complications due to the yarn ingestion. I really hope she is ok.
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