OPs problem seems to be that the files from the recovery program are "corrupted". This happens a lot due to fragmentation as explained in this post at superuser.com
That can be a useful post. One that you may already have gone through and tried. If not, the alternative recover tool like PhotoRec seems to help with file recovery better than other softwares.

Also, if any of these methods work, make sure you are doing them "offline" and on a clean PC. You cannot ignore the possibility that some of these recovery programs themselves aren't trojans willing to share private keys the moment they are exposed.

Many people lost BTC from earlier years this way. The pain is obvious. Don't stress about it anymore though. Abdominal issues are stress related a lot of times. You can still do and earn a lot as long as you are healthy and stress-free. Even if you had all those millions, it wouldn't be worth spoiled health. Just one life and body man, take care of it. Wish you speedy recovery and good luck with this.