Hoppy I think wanting to run away from your body is totally normal.
I was so shocked during the whole time this was happening to me. I know it is very common but it still hurts if it is you. Even though I know that there is a risk of things going wrong - particularly before 12 weeks - I still couldn't believe my body was doing this to me.
I know staying in hospital is awful but hopefully that means you will be checked out properly and this will mean you can leave (maybe with some answers) without constantly waiting for the worst.
The bit I found hardest was pretending every day that life was normal while I was still bleeding. And obviously I still felt very hormonal and I found it hard that in some ways I still felt pregnant even though I wasn't.
But the good news is that just a month later, I do feel better.
Not hormonal anymore and I've done little things to help myself. I bought myself a beautiful scarf and told myself that it would be my reminder of the happiness I'd felt when pregnant with that baby so I could keep some of that beauty with me.
I've done things I couldn't do when pregnant with gusto. I have written down my feelings and put them away because that meant I would never forget them (even if I never look at them again).
It is obviously too early for you to feel that way but I wanted to say that you will be okay even though it feels so awful now. And it is normal not to be ok for a while too.
Do come back here and post if it helps. I hope you have lots of real life support too.