Look at your transaction history to know that.
Pretty much the go to answer since everything is traced. If it's not on there... didn't happen
How would those waves be gone on your wallet if you cant see any transactions? Thats impossible or you are just disillusioning that you have waves
. Those coins wont go anywhere unless if its being transferred into another wallet.You do have the seed and keys on such wallet and theres no one could able to touch those. For now,just try to look on its history.