mommy guilt- need reassurance

Ma
My LO spit up a lot last night before bed. About 30 minutes later she ate for 5 minutes. Then she woke up 2 hours later, which she does sometimes and just needs a pacifier or a hand on the chest. So I gave her a pacifier and she went right back to bed. She slept 5 more hours. When she woke up her diaper was dry!!!! That was 7 hours without a wet diaper. I fed her immediately and she ate. I called the doctor and they want to see her to make sure she's not dehydrated. But I feel awlful because I feel like I should have fed her when she woke up. I want to be able to forgive myself. Please tell me you've done things like this before.