Baby rolling?

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My LO rolled from tummy to back at around 6weeks. Tonight he's very proficiently rolling to his side and ohhhh so close to rolling to his belly (he was 3mos on the 13th). The rolling to belly personally freaks me out (did even with my daughter- took me a few weeks to sleep well knowing she'd be okay). Any other moms experiencing some hyperactive babies keeping them on their toes?!