My mum suffers from borderline personality disorder. She's never been to treatment (mainly because she is very much in denial about her condition and has a bit of a stigma against mental illness, even if it's her own) but she's normally okay to deal with, especially once you know about the BPD. However, there's one situation where she becomes out of control and that's when she gets jet lagged. I first noticed this when I took a short international trip with her about 6 months ago. She was close to unbareable for the 4 days we were abroad and this continued once we returned home and she had to go through a change in sleeping cycle again. She threw some of the cruelest comments at me and to this day will never fully "apologize" for them (she's been known to say some fairly mean things in the past, but she normally reaches a lucid period and apologizes). She went on another international trip about 2 months later. I wasn't there for the trip and was away for a few days when she returned home, but even from the text messages and calls I had with her I could tell she was in a horrible headspace. Now she's left for another 2 week international trip and, given the messages I've been getting so far, I'm honestly very scared for when she returns home. That being said, I'm an adult in my mid-20's and know how to live with her; as difficult as it can be, she's still my mother and I love her with all my heart. I'm more worried about her being in a foreign country by herself in such a negative place. I'm worried she might do something irrational or dangerous. I'm also worried about the vicious things she says when she's in this type of mood and how she could potentially alienate herself and drive away loved ones who aren't sure how to handle her condition. And the worst part is that there's really no way to prevent her from traveling. It's part of her work. I'm not even sure if this whole situation is related to her BPD or to jet lag, but has anyone experienced anything like this before? I'm not necessarily looking for a solution, as nice as that would be. I'm just looking for someone to talk to and for some sort of evidence that there could be a relation between jet lag and extreme BPD episodes.