Right so this is entirely my fault but please take pity on my audio soul.
 
Finished a somewhat arduous bass edit, then moved on to vocals. During tracking I had accidentally left the vocal track armed while recording the bass parts, so I had duplicates of all the bass takes in my vocal channel...no problem, I thought to myself, I'll just delete these duplicate parts and do my vocal edit! Spent an hour or so doing my vocal edit, then went back to take a listen to my whole mix, and realized when I deleted the "extra" bass parts off the vocal track, it had deleted the matching ones in my bass track as well, as they had been grouped while tracking (I have that commmand engaged essentially all the time to make sure drum tracks and whatever stay together).
 
Is there ANY way to fly the bass takes in and have them appear at their proper spots without going back to the previous version of the session (before I had done either edit)? All the audio is still in my audio folder.

Edit.History.Undo record?
 
(just a stab)
 

Been there, probably done worse.
Save the current take as a new Project*, in a new folder.
Then go back to previous and extract the parts you want and copy them to the new project.
 
* edit: I always use the option "Copy all audio with project"
There was a case where I discovered I lost a guitar part somewhere along the way weeks back and I was able to recover it from an audio file in an old save.

Look in your project audio folder for the deleted takes and paste them back in individual tracks.

Thats awful I recently did something like that.  History is what save my session

I do not have a convenient suggestion for your situation now. The ideas above are worth a try,

For the future though maybe you might follow this tip.

Use Save As while working on your song. Each file name is like rev1a, rev1, after the song name. Work from the newest Save file and leave the previous files as your history.

That way you can't step back at any point in time when you've made a previous save point. Has worked great for my workflow through the years. I've never lost 3 hours of creative effort.

Related note. I actually use this rev naming convention: PL17-10 rev1a. That reminds me if I return to a song 6 months later what version of Sonar the latest rev was in.

Won't there be one or more "undo recording" entries in "History"?  If you work backwards one at a time will an undo "redo" the recording you recorded over?
 
Maybe: Go to your audio folder.  Sort by time.  Copy everything to a folder on your desktop.  Sort though it after a few drinks.  At least you have everything you recorded that day, or during those hours.