Hello,
My first thought was menopause. But also there are so many people involved in emotional affairs thesedays since facebook and the other networking sites have cropped up all over the place. And these affairs are bringing back the youth lost.
I really am sorry that you are under such pressure and I'm sorry your poor dad is too. It must make him feel awful.
The drink and drugs are a bit of an issue though. if she's a depressive the best way down is with the worlds two most powerful depressants alcohol and didge. She needs to be warned of that combination, not to mention the possibility of psychosis from the didge too.
I really hope that your mother can find her balance and sort her self out. This isn't just about finding lost youth it's facing her mortality as a human being as well. She's middle aged and she just realised it...we all go through it...I'm loving my middle age...like a fine red wine...I get fruiter by the day...
Rhiannon