I'm kind of skimming through posts as best I can - we seem to have a lot in common, actually.
The anger IS normal though and honestly it's better to get it out than hold it in. I cry to get mine out, same thing w/Anxiety. That's just my M.O. It's not sad tears, more - overwhelming things set it off. Also, the scars!! The emotional scars can take years if ever to work through, BUT in my case, though they're there, they led me to a healthy partner. So, they're kind of like "Triggers" I can now sense a disingenuous person w/in 30 secs.
The restraining order? Just make absolute certain it's up to date! Even if it's not, get a new one. I was exhausted myself going through it and was SO, just everything in my body was spent AND I had a child to protect.
I had to get to a point where, WHEN I had the energy - I would pre-make little pieces of carrot, celery, brocolli, tiny pieces of meats or cheese (I too am lactose intolerant). Even wheat crackers by the bed to keep my strength up.
I can empathize...I still have scars - like things set this panic off, loud noises, a bad person, crowds and the head injury seems to have just enhanced the "sensitivity" so I'm picking up other things as well (great fun..)

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Allyson, has some really good advice as well as Rolong Wicca.
One of the other things I wanted to relay is
their words, the abuser, can really put that obstacle in there. It's a tool they use, basically to make you defenseless. They become more and more especially when you start to get a backbone.
At that point it can get tricky. You have to outsmart them AND know - 100% positive, keep telling yourself, it's an illusion. You were not, sweetie, put on this Earth to be someone's punching bag.
Lock everything! If you CAN and have a place to go, I would move. NEVER answer that door. Have a view so you can see who's out there and you might consider a pet. They can sense a prowler before you do. Me? I have something like a "watch-Cat" and she's right every time.
Try also not to rely only on the powders and drink thingies. Even if it's one of those baby carrot bags and you eat or nibble on just one when you can - try to get something in there, even if your not the least bit hungry.
We're thinking of you. Just know that you have support. I had none, back when I was going through mine, and these people would have made all the difference! I just hadn't found them at that point.
If this person shows up again, you call the police while they're out there and have 911 on speed dial and a cell, lock yourself in a closet if you have to until they get there. They'll have to break in and there's more evidence.