Girls, can you please tell me if there's a reason for concern? My daug…

Girls, can you please tell me if there's a reason for concern? My daughter is 4.5 months old and she still can't poop independently. As soon as she feels the need to go, she starts crying, screaming, throwing her head back, and gets hysterical. I have to give her massages, but when she poops, it starts right away. After she poops, she calms down immediately. And that's how it has been since birth - constant crying and hysteria 2-3 times a day. I thought she was just small and would learn to poop and push out her stool on her own. But she still doesn't poop or defecate independently. I'm worried. The pediatrician said