It will never go away, will it? That constant worry. Worry that something will happen if you are not around. Worry that something will happen when you ARE around.
Is she getting enough to eat? Is she napping enough? Is she developing at an appropriate pace? Is she..? Is she..? Is she??
Will there ever be a day when you just sit back, breathe and say, "She will be fine. It will all be fine."