Reviewing Edits in a Word Doc

I was editing a document for someone else and didn't realize that after about 20 pages tracked changes turned off. I still edited the rest of the document, but how do I go about showing those edits that I made past the first 20 pages? I've tried "Show Markup> specific people" and that did not show anything I did. I also cannot view previous versions of the document as it was saving as it went. I'm at a loss on what to do besides manually comb through just shy of 300 pages of a document.