Throwing up after meals

I really don’t think I have bulimia, not at all, but after each meal i feel the need just to throw up, like I don’t feel comfortable until I do. I don’t do it to get skinnier (even though I do think it could help) it just happens naturally, and i’m only 15 and definitely not pregnant, I just wonder if anyone knows what it could be, thank you :))

I also don’t over eat, like my meals are not that big, so it’s not like i’m eating huge amounts, either and I hardly ever eat everything on my plate. They are usually relatively healthy too, so i’m not sure what it could be

( I’m 5’11 and 124 lbs just incase you were wondering)