Sleep talk pop in to my sleep

Hi, have not been chatterbox while sleeping, living alone.Sleeping pretty well, very mild occasional snoring.
65 years old, lost my mum 95 yo in July 2024, before that worry about elderly care and her care almost daily.
Suddenly when travelling in oct i was told i am talking nightly while sleeping.
IS It anxiety, stress, grief, I was very close with mum, only Child?
what can i do myself?