Oh my! Snowmash, you are no less deserving of medical help than anyone else, and if anyone is to blame for closing libraries, then it's the government, it's their choice to do that. They have different budgets for different things, so the library service comes from a different budget to the NHS anyway.
I'm glad you're going into hospital, you need and deserve their help right now, just as much as I or anyone else here would if we were ill.
I used to have a friend with bipolar and schizophrenia, she would have episodes like yours, and the meds have badly harmed her liver too, it's an unfortunate side effect, but certainly not one you are to blame for either.
I know what you mean about expecting people to hit you, I feel like that when I'm having a depressive episode, because that's how I was treated as a child for expressing my feelings. I'm not saying this is the case for you, I don't know your past, but I do relate to that part of it, and it's the illness that does it, nothing to do with deserving a slap at all.
Good luck in hospital xx