Is it normal ...

I've been feeling baby move since 14 weeks. At about 18 weeks I could feel full on kicks. Since then he moves all the time everyday all day all night long. I'm now 22 weeks and yesterday he hardly moved all day. & same this morning. I just ate some breakfast & lied on my side & gently shook my belly. He started going crazy for about 2 mins. Now he's quiet again. Is it normal for them to "take days off" lol. & by that I mean be lazy all day. I'm just so use to him kicking me & flipping around all day & night it's just kind of making me worry now that he is being so quiet in there. 
I read that as long as he is moving, there is no reason to be worried. 
Just curious if any of your babies have lazy days.