Your discovering what every Pergo floor purchase will eventually experience. Initially it was a high end product. Installation is easy and it looks great. It's an instant gratification floor. Kind of like buying a new mobile home. The thickness of the top laminate is only .062-.066 which scratches easily and fails with moisture or heavy traffic. There have been lawsuits against Pergo for failed laminate flooring products. Don't waste anymore money.....tear it up and replace. I would suggest either Oak T&G or ceramic tile depending on location.
It isn't clear what you are asking. The placing of the question mark makes it look as if you are asking if the floor has worn out. I haven't heard of laminate flooring wearing out, but it hasn't been in general use all that long. Wearing out says to me that the surface finish has worn through to the substrate. I don't know how the ends could wear out because you don't walk on the ends. If the ends or edges are swelling or lifting, that happens when they are exposed to moisture. The only fix is replacing the planks which are doing that.