Too fast

Time is going by too fast! I've realized too late that things with your children change too fast.  They grow too fast, they lose teeth too fast, they change from babies to toddlers to kids too fast. I think you don't recognize it with your first child as much as you do with your second (last) and then one day you wake up and your son's not a squishy little boy anymore.  Can anyone else understand how this little fella is about to turn 9?