Yung repetition na yan ay normal talaga sa ganyang edad, lalo na if nakakakommunicate na siya at nakakasagot pa sa questions, sounds like she's just learning and practicing words pa lang! A few of us moms noticed din yan sa aming kids around 3, parang ginagaya lang nila tayo habang nag-develop pa ang speech. But since you're wondering about it, basta magcheck din sa pedia mo next visit para ma-ease your mind, kasi may developmental markers pa rin silang itinatapos around that age.