Hi Michael,
If you didn't have the files checked out before making your changes, then, yes, your changes might not show up in the shared version. However, you can probably recover your changes from the auto-save files on your computer.
Here's an article that describes how to get your auto-saved files back: http://casecomplete.zendesk.com/entries/247376-how-do-i-get-the-autosaved-files-back
Let me know if that helps. Thanks!
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