InDesign File Crashing on Open: No Recovery and Fails to Load

Hi everyone,  First, thank you for all of the responses.  They have been encouraging and insightful.  Second, I have been trying for most of the day to continue to troubleshoot the issue.  I have used older file date that were also unstable/corrupt as testing sites to try your suggestions.  While these did not yield fruitful results,  I have had a small bit of luck.  The file as I mentioned in the original post is a litle over 134Mb.  It also has over 500 images linked to it.  I have been working on the file for over two years.  I have yet to have any issues with the it until the other day. 

The issue I believe came when I started copying and pasting text from a Google doc into the InDesign file.  The Google doc file had text I had accumulated over time, meaning the text could have come from many many other sources.  My theory is the copying from the Google doc into the InDesign was bringing over junk for lack of a better words.  Over a period of many copy / pastes, the InDesign file just didn't like it and became unstable.  It started crashing and went downhill quickly -to the point where it would not even open.  That is obviously just an armchair perspective of someone who knows very little.  I do, however, tend to push file stability places they don't really want to go. 

Now to the bit of luck.  The day I started noticing the instability of the file, I saved multiple copies out as I continued to edit the document.  Eventually (and very quickly) the file became so unstable it wouldn't open.  These earlier files were also giving me issue to open which I found odd.  But today I tried opening one in particular in a previous verison of InDesign (18.5.4).  It worked.  I  was able to "convert" the file and save it off.  The conversion messed with the linked images quite a bit and I lost quite a bit of work because of it being an earlier file date but it a start.  I have been working with the file all evening and it appears to be stable.  I am able to open the file in the most recent InDesign and I have save a few extra copies along  the way for extra precation.  I've also been taking thee text I was copying into the file previous mention and "cleaning it" by giving it a prescribed style to hopefully mitigate any clinging junk. If anything comes back, I'll reach out.  Otherwise I did want to say thank you everyone again for their time and assistance.  cheers, john