Question for veteran moms

So I noticed today I’m feeling baby movements wayyy stronger. I’ve felt the baby since 12 weeks. I’m only 16 weeks 2 days now . Every time I carry my 2 yr old or carry something heavy or doing something where my belly is pressing on something I feel a strong movement. It even tickles lol

Is that normal. This is my 3rd baby. Feels so strong already has me confused as to if it’s the baby or my uterus. Idk hard to explain. I could swear it feels like baby