My last iCloud backup of my iphone 4S was 1.9G. Just a few days later, without having adding any apps, photos, or anything, it says the next backup is 6.8! I have turned off and/or deleted all apps except what is native to the phone. I turned off the camera roll and documents and data. It still says the next backup is 6.6. I cannot figure out what is taking up this space and have searched the forums. I read that imessage backs up every attachment ever sent/received in an imessage, but I don't know how to delete them or if that's even correct. Any help would be appreciated! 