The one thing I did this morning that I think might have caused this is I installed QuickPic and started using it instead of the included gallery from Samsung. Though I'm not sure why that would make G+ think every single pic/vid in every folder on my phone and the external sd card was new and start uploading them again... and even if it did, doesn't Google do some kind of CRC check to make sure the file hasn't already been uploaded because if they don't it's going to suck when I move to a new phone but copy over all my old media and G+ decides to upload a 3rd copy of all my pictures.
My questions: 1) How do I stop G+ from backing up things that have already been backed up. 2) How do I clean my G+ Photos in the cloud to get rid of all the duplicates. There are thousands of pictures uploaded so I really don't want to do it manually.