Constant stomach aches 😭

I've been to the doctor about this & they don't seem to care so I'm asking on here. Does anyone possibly know why I get stomach aches while or after I'm eating. EVERY single time I eat. Sometimes even when I don't eat I get random stomach aches. I hate it because when I hang out with friends, I have stomach aches & have to use the restroom multiple times in a short amount of time apart. When I go on road trips, my stomach can hurt so bad I literally had to have the driver pull over... I love going out to eat but after just one plate my stomach starts to ache & go to the restroom multiple times sometimes. It's extremely annoying & embarrassing so I really just wanna figure out how to stop it or at least stop having so many stomach aches.