Yes, yes, yes! While baby moves lots more now, in the second tri I honestly felt worried some days because the baby would be so quiet. Then often the next day it would make up for it by seemingly turning somersaults all day and night!

Its perfectly normal so don't stress. Babies are just mini people who have 'up' and 'down' days.

If you're worried, try lying on your left side or have a cold drink and lie down.

I always found sitting quietly and letting the sun shine on my belly helped...

Also - have you noticed what you're doing on the quiet days? Sometimes it was actually just me being so busy I hardly noticed when it when baby DID move...

HTH