5w old breastf threw up all her food yesterday keeping it down today 2fully soiled diapers 2lightly soiled weird belly noises cries when pooping fussy?

Tummy aches. Are you breast or bottle feeding?If you are breast feeding, your baby may have been having difficulty with something you ate.Bottle feeding?With the presentation you describe and subsequent improvement I would suggest that a minor stomach bug may have been the issue and that things should continue to improve.Go to ED for progressive vomiting, bright green vomit, or inconsolable irritability.