How long should you expect stomach muscle soreness after vomiting?

Abdominal muscles: Vomiting can be quite a forceful event the body goes through. It is not uncommon for many patients that undergo severe or frequent vomiting, to have soreness in their abdominal muscles for days to weeks even. Remember, just as you can cough so hard that you break a rib, you can vomit so hard that you even tear some abdominal muscles.