This is an interesting question and I’m not sure what could have caused the change that you are describing in your mother. Maybe the move has uncovered or triggered something in her, maybe the hormonal and mood changes that can accompany menopause could be a factor, or maybe there is something else going on entirely.
However, I do feel that it is appropriate to speak to her about your concerns. It might be best to first speak with your father and sister so that you are all on the same page, and you might even want to plan a time in which you all sit down with her together to share your concerns, rather than you taking it on alone.
It will be important to speak to your mom at a time when she is calm, rather than during or immediately following one of these episodes. Make it clear that you are speaking to her out of love and concern, not judgment. Have some resources prepared such as information about local therapists or mental health agencies, but I would suggest that she start with a medical exam to eliminate potential physical causes. Having said all this, I must also say that you can’t force your mom to follow through on any of it. She is an adult and will make her own decisions but I hope that when she sees how much you care, she will look into getting some help. I wish you luck.
All the best,
Dr. Holly Counts