What @Lgbeano was trying to explain here is that: if you have the right seed words and your wallet was emptied by someone, then you would see the transaction of that moved ada.
If you restore an empty wallet with no transactions at all then this means this wallet has always been empty.
Best thing is to contact Daedalus support: Submit a request – IOHK Support
Please also look into this similar thread: Lost ADA on Byron wallet - #14 by DMW1969