Had entered comments and additional changes to someone else's markup. Emailed it to that user, who reported she couldn't see any changes or comments. I verified from the version in my sent email, then checked the version on my hard drive. Now that doesn't show any changes/comments either. Trying to clear out any possible corruption, I saved it as an RTF format, then resaved as a docx. No change. It's also now been over a day, and no change.

Any suggestions on how to get the changes back?