The most common place for carpet to have problems is a Seam but that is Fixable sometimes without needing a donor piece as you can see here in these pics  better to fix now then let it get worse which can become a tripping hazard and can lead to the carpet becoming unrepairable  at some point.  No need to worry I can make your carpet issue a thing of the past  call Breeze Carpet Repair 760 623 9444