Hello everyone! I have a daughter who is 8 months old, she already eats on…

Hello everyone! I have a daughter who is 8 months old, she already eats on her own and plus breastfeeding. But she can't poop normally, she struggles, she comes out in small pieces and that's it, because of this she cries (Do you know what can be done? Have tried massage, what else can I do?).