I have been using an old wallet until last year - Bitcoin Version v0.8.5-beta. QT Version 4.8.3.
I stopped using it as it has become corrupt. I had made several transactions that were not successful before I realized it was corrupt. They are showing in my transactions list as a question mark with 0 confirmations, however the transaction amount has been deducted from my wallet total.
I backed up the wallet.dat file after each transaction and overwrote the previous backup when I did this.
Can I retrieve the missing bitcoins?