should i go to the ER

i know its going to seem so small and why would i even think about going to the ER but for WEEKS i'll get a really bad stomach ache atleast once a day it all started maybe 4 weeks after i gave birth. Its the same pain you get in your stomach when you're really gassy but i dont think thats the issue because i can poop multiple times and i press on my stomach, do all sort of things you'd do to get rid of gas and it just gets worst. im scared it can be an infection causing the stomach ache like pain but everytime i search symptoms of an infection nothing mentions stomach aches. im 8 weeks post partum and have the post partum appointment in 2 days. this has been going on for a month now and everyday it just gets worse and to the point where i have to squat down and sort of roll up into a fetal position. Has anyone felt this way after giving birth or at all?