Feeling after food poisoning

So about 2 days ago i got hit with nasty food poisoning. It all started after i ate a burrito. Now that my stool is normal and vomitting is gone since a day ago im still feeling alot of cramping in the middle of my chest and upper back. Its so sore that even trying to sleep at night sucks. Is this all from vomitting so much? Ive been staying hydrated and been drinking pedialyte.

It could be. You might want to try some antacid.