I did the same as Kimmerz with my kids (age appropriate, of course), they went and did their own research on MLC, (peri)menopause, empty nesting, etc. I made sure they knew that it wasn't their fault, that Mom didn't like it either and that no matter what, I wasn't going ANYwhere and that things would be okay in the end. They really stepped up for their ages...proud of them.
Sleep? Melatonin (5-10mg), Valerian root and Fenugreek. My mind is hard to turn off analyzing, future projecting, trying to find what I was missing, fear...etc. I needed the help sleeping, and detaching and placing the sitch in God's hands eventually helped the most...
T^2
In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus
Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm