Scabbersley when does it happen? Have you noticed a pattern of any kind? Mornings or evenings, when you stand up, when you're anxious, etc?
The more you can identify the occurrences, the easier it will be for your GP if you choose to enquire.
ilovecherries I love your post, probably because you articulate what so many of us are going through. I also give great thought to the emotional part of this transformation (probably because I'm in therapy 
) and right now I just want to crawl through the ether and give you a big hug. 
For me it is so difficult dealing with the remorse of allowing myself to become obese again. I first got this way in my late teens after a traumatic event which led to severe depression. Sorted myself out eventuallyphysically at least, and somewhat psychologicallyand stayed at a reasonable weight for years until was once again hit with depression. I almost didn't make it out this time, to be honest, but mostly I have. I am much better.
Still think every day about how much I've wasted of my life being unhealthy, and it hurts.
Thing is, if you knew me in real life you would suspect none of this. I am outgoing, enthusiastic, a bit sarcastic, and come across as quite confident.
What I really need is a tattoo that says "If I gain more than a stone, I am probably becoming depressed. Please help me by making me get help."
I realise this isn't everyone's story and am not suggesting all overweight people are depressed, by the way. That's just my story.
ilove regarding maintenance, is start by asking myself what it is I miss most and want back in my life. The answers might surprise you.
Scabbersley, it seems cocoa and cacao are two names for the same bean. However, they're different processes:
"Raw cacao powder is made by cold-pressing unroasted cocoa beans. The process keeps the living enzymes in the cocoa and removes the fat (cacao butter). Cocoa looks the same but it's not. Cocoa powder is raw cacao that's been roasted at high temperatures"
If that helps. 