The girls have a problem. Every feeding (breastfeeding) lasts 2 minute…

The girls have a problem. Every feeding (breastfeeding) lasts 2 minutes, then they start crying, getting nervous, kicking their legs in their belly, spinning, turning away as if something is holding them back. The milk seems like it's there, she comes normally. And on her side, lying down and on her back, the same story. I don't know what to do anymore. She goes to the toilet normally, plays during wakefulness, not bothered. What could this be? Does anyone know?