worst nightmare, Pergo floors
The pinching of feet is an interesting comment...
That would indicate a floor that has an upward "bow" to it so that when one steps on the spot, the wedge-shaped gap closes and pinches feet.
A floor like that bows from 2 reasons...
First, it could be a lack of an expansion gap on the perimeter; the floor was installed real tight and needed to expand and when it couldn't, it buckled and bowed.
Second, it could be a moisture issue, either from the subfloor or a leak somewhere.
Did you do a "poor man's moisture test" (taping down a big square of plastic and waiting a week to see if moisture builds up) before installing the floor?
Check the full perimeter of the affected area carefully. Big leaks tend to peak joints of planks and are usually obvious. Small leaks are less likely to peak joints and more likely to buckle an entire floor over time.
The weirdest laminate-ruining leak I ever saw was some insulation missing from a coolant line on a fridge. Water would condense on the exposed metal line and drip - like a few drops an hour at most. Not much moisture when you think about it, but after a couple months of this, the whole floor (over 600 sf) had buckled and bowed in a major way, and it had an expansion gap.
If you can't find a leak right away, try looking in rooms that have a common wall with the floor... a leaking shower pan in a bathroom that has a common wall with the laminate area, for example.