Ay, normal lang yan sa ganitong edad, lalo na kung wala siyang signs of distress like fever or excessive crying! A few of us moms noticed din na ang babies nila ay may ganitong head movements around that time, it's usually just them exploring their bodies or maybe teething sensations starting na. But para ma-ease your mind talaga, I'd suggest checking with your pedia during your next visit just to confirm lahat ay okay lang, especially pag may other changes you notice. Ang babies namin kasi ay laging may something na di mo alam kung normal or hindi, so better safe than sorry!