My baby’s movements hurt ?! 30 weeks

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This is my second and I don’t remember this with my first. I am 30 weeks and my baby’s movements are starting to really hurt. It’s like the middle of my stomach I’ll feel like one of his body parts is twist or turn slowly like not the kicks, but mostly the twisting feelings. It causes me actual pain and idk if that’s normal. It has me paranoid that he doesn’t have enough fluid or room cuz why is it hurting so bad when he moves like that?