Steel, It sounds like she's deeply depressed and is questioning what she's feeling and doing. Yes, some of them will say something about having an mlc, but deep down, they won't ever really admit it to the fullest extent.
What other symptoms/signs have you seen? Did something happen to her or her surroundings in the 18 months leading up to the depression?
I would suspect that she's transitioning into her next phase of life. Mlc? I want to hold out on my thoughts on this one until you post a bit more about her and her behaviors.
Start reading up on depression and you'll find that many of the symptoms that you've posted are directly related to depression. Yes, even the om, gambling and drinking, etc.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
