I'm really sorry, Boston. You already know that it's hardly surprising that your pain is full-tilt right now. The thing is, now that you're out of the house, that's a big distraction that isn't there all the time - and back comes the pain.
This is a great time for you to recognize that your brain is desperate to keep you from experiencing deep emotions that it thinks you can't handle.
I have been through some stuff in my day, and here is what I learned, which I will try to apply to your situation:
1. Feeling like a failure. It's going to be healthier to face exactly why you feel like you have failed - and, having faced that, accept it, and then move on. Because, believe me, deep down, down where your brain is repressing all the shit, you DO feel like a failure. I've been there, I know.
2. Feeling abandoned. Been there, too. Obviously your wife abandoned you. But guess what - your children have abandoned you on some level as well. Hell, even your dogs have abandoned you. And this is TRUE even though obviously they can't live with you right now. It's still abandonment. This is one of the CORE issues of humanity - it's big, and it's scary, and your brain again thinks that you can't handle acknowledging that you've been abandoned.
3. I can already hear your response to #2. And yes, it's ironic, because you are probably FULL of guilt about abandoning your children, and your dogs. Guilt is a killer - because it's all about self-hatred, when what you really need to do right now is to be kind to yourself - and getting out of that house was the first step to taking care of yourself. Get over the guilt - you have more important stuff to work on.
4. Isolation. Do I even need to explain this one? It's another core human issue. But our brains are really good at hiding this one from us, and covering it up with distractions. You are experiencing isolation, and probably fearing the isolation in your future. This is totally normal, and very human. And once again, it's going to be healthier to acknowledge it, and accept it as normal, and live with it. It won't kill you to feel it - your primitive brain just thinks that it will - but we know now that it will not.
Good luck, Boston - it's a good move, I know it. And your TMS is flaring because it's fighting knowing it.
Jan