my stomach has been upset alllllll day long😢 and i had a little bit of cramping, but i have no…

my stomach has been upset alllllll day long😢 and i had a little bit of cramping, but i have no period yet because I'm breastfeeding. And I've been a bit emotional also🙄 BUT I've taken test and they've all came out negative. my stomach has never hurt like this. it's just upset and i haven't eaten much. :/