Aiyah, normal je lah, baby movements can shift around depending on what you're doing throughout the day, especially when you're more active or resting. At 23 weeks, your little one is still quite small and the movements can be subtle, so sometimes you notice them more at night when things are quiet and you're lying down, but it's totally fine if the pattern changes to daytime too. A few of us mums noticed our babies were more active at certain times, then suddenly the pattern changed, one of my friends' baby was a night kicker until around 28 weeks, then shifted to afternoon movements when she was sitting down at work. If you're still feeling regular movements overall (at least some movement in a day), that's what matters most, but if you're worried or the movements suddenly stop completely, best to check with your doctor just to be sure everything's good!