Baby not crying but is restless and moving

Hello!

Every night my husband and I end up debating whether or not our baby girl (7 weeks now) needs to be picked up and fed/rocked back to sleep or not. After about 4-5 hours, she stirs/moves/grunts/whimpers/is all around restless in the crib, but she is not crying and her eyes are not open. We end up caving and I get