Flashed from 4.1.2 rom to 4.2.2 rom but it didnt wipe my internal sd card. Need help

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http://forum.xda-developers.com – It appears my internal storage card didnt get wiped when I flashed a 4.2.2 rom so now my storage shows i only have 7 gb of storage left and I can only view the other storage while in recovery. I searched google and this forum and couldnt find anyone who had the same issue. Maybe I didnt put the right key words but nothing seemed to show up that was remotely similar. Please Help. (HowTos)