Open Indesign and check in File>Open Recent. It should be there if you saved it.
Nope, like I said, it's completely gone, it was saved but when I exported it to PDF it disappeared as an indd. the only versions that I can edit are ones from weeks ago that never had countless edits that i made and symptomatically can't remember
InDesign documents don't 'disapear', you've either saved it somewhere or inadvertently overwritten the original with a new name.
It's a reminder to us all to make regular incremental back ups, and also on external drives and/ or the cloud.
If you have Acrobat Pro (part of CC) you should be able to correct the PDF typo there.
It would be worth doing an OS file search (Spotlight, Explorer) for the file. Might be you have two versions of ID installed and you've opened the other version which is why it isn't in the list.
.. The only versions that I can edit are ones from weeks ago that never had countless edits that i made and symptomatically can't remember
You can copy just the text out of your PDF and paste it into the older version. InDesign's PDFs are extremely well-formed* and so this should be no problem at all.
For verification, you can also import the PDF (as a regular image) and place it under your current text. That way you can see most tiny changes immediately.
* Some PDF creators move characters inside fonts around and do not store that information, so when you copy some text it comes out garbled. InDesign does not (well, at least not under usual circumstances).