Lol calm down!! Sjeesh We all have this problem... These are data files... Game data or app data.. Usually a hard reset will lessen the amount, but that does mean losing all the game data
Well, I understand his agony a little - as 6gb is a lot to lose. And it's weird Storage Sense and Storage Check count differently. Storage Check thinks there is 2gb of "other" on my phone, while Storage Sense says only 192MB (L920). However, I don't really mind it too much as I have 32gb of internal memory... I can live without 2gb...