Oo normal lang yan, especially pag parang surprise ng baby ang movements mo, sobrang sakit talaga pag biglaan! At 28 weeks, napakalakas na ng kicks nila kaya parang literal na pitik talaga sometimes, lalo na sa sides or near your ribs. One of my mum friends said hers was so painful she thought something was wrong, pero normal lang siya, mas nakakaproblema lang pag consistent ang pain or may bleeding, that's when kailangan mag-check na with your OB. For now, just breathe through it and try to change position pag nangyari, usually tumitigil na or magiging lighter ang movements.