I'd be more than happy to answer your question Lovinmom, although I think my answer could get rather nebulous.

Be forewarned! I've rambled before.
The first time,(probably around the time I first met you) I lost 30 lbs in 2 months. I ate 1200 cals and walked over an hour most days. You can probably see where I'm going with this one. I didn't learn a thing. I thought there would come a point when I could go back to normal. Oh maybe exercise some, maybe watch for really fatty foods ... but nothing too inconvenient or uncomfortable. That does not work.
Everybody yoyo's a bit and so did I.
This time does coincide with some health and/or medication situations. But it also coincides with me eating badly and not exercising (which probably would have helped my health situation too). Blurry focus?
I'm not sure that 'stressors life threw at me' is quite accurate. It's more like 'my reaction to stuff that happens'. I know of no conclusive studies that prove ice cream cures back pain!
Each time, I'm convinced that I've got it! That I've learned to live like a thin person does. As of yet I have not, but I do learn something each time it happens.
What gets me back on track? I remember what it was like to be thin. I really like it!

And 3FC. I can immerse myself in healthy, slender, fit thinking. I'm not sure what I did before the internet.
That's all I can think of ... whatever that's worth. Who knows? It might help someone.