"Jack-in-the-Box ?"

Our little precious has been
moving alot these days..
more intense..a little more 'vigorous'..
@ times..i see my tummy 'jump"..
i blink..and it 'jump' again...
as if there is a little spring in me...
kinda reminds me of "Jack-in-the-Box"..
my little baby...
are you trying to say "Hi" to Mummy ???