Curlyhaired welcome to the thread although sorry you are here.
Your situation sounds very hard, it's hard enough with just one unwell child let alone trying to manage another with complex needs.
If your dd is physically assaulting you then do call the police, I would draw a line at that behaviour and it will send a strong message to the ED that you will tolerate being assaulted.
Your dd is going straight into fight and flight mode as her anxiety is so high which explains the behaviour but doesn't mean you have to put up with it.
Having police involvement may also result in you getting more support.
You've had excellent advice from lots already, food has to be non negotiable and do not go down the route of enabling the ED by giving your dd low fat/low calorie foods because you think that will be easier and she may eat it. The result will be a longer recovery.
You make the decision about what food to give her based on what you know she likes and what you can cram the most fats and calories into. If she's going to have a meltdown over food make the food count!
There are two ways to approach food refusal,
- Life stops until they eat and you wait it out, the food goes down and they will not leave the table until it's eaten. The food must go in, so be vigilant for hiding food, throwing food, pouching food in her cheeks etc.
I suspect this will not be sustainable if you have another child to manage as well.
- You set a timer for the meal or snack to be completed of around 30 mins.
If the food is not eaten in this time you offer a higher calorie supplement drink.
If this is not drunk you put them in the car and drive them to a&e with the food on their lap.
See it through and make sure they get a thorough check in a&e and are not allowed to leave until they eat.
Both options are not perfect but will work eventually. If they won't eat in a&e then request admission as they may need an ng feed.