Hi ! I am sorry your daughter was not feeling fine, hope she feels better now.
Just because she was sick does not mean you'll be as well. My mum took care of me everytime I was sick when I was younger and she never caught it once. I am sure that, as an emet, you wash your hands a lot etc. You cleaned, washed the bedding so you did everything you could.
Just try to relax, don't think about it too much (I know it's hard). I don't exaclty when you'll be "safe", but people usually say that after 48h once exposed, it is unlikely to catch it (someone correct me if I am wrong!!).
Anyway, I hope you and your daughter will be fine, keep me updated
Don't worry, I understand exactly how you feel, you're not alone.