a friend an colleague at work has recently gone trough a complete change. From good humoured, self-confident to totally insecure and anxious in a few days. She has some private problems an has to fight an illness, but this situation has been going on for some months whereas this change in her behaviour came totally unexpected and within a few days. I have the impression she is getting thinner (not in terms of bodyweigh, although she is loosing weigh too) every day. Like she was slowly disappearing. Before this change, she spoke of her problems quite freely and frequently, now, she only repeats that she is insecure and seems often to be at a loss for words. She sometimes just stands there and looks at me and says nothing. I have no idea how to help. I already asked, if something had happened to her recently, but she denied.
updated by @chrisis: 02/07/17 09:08:58PM