Baby movement question - ftm

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I’m 21.5 weeks and around 18 weeks I started to feel movements, felt like rolls or flutters, as if baby was changing position and wiggling.

The last couple of weeks, I’m not feeling that anymore and instead I feel little I guess taps but they r so quick and light, they r almost more like little twitches. Is that baby kicking?

How come I don’t feel the rolls/flutters still if that was baby wriggling?