On another note, I had a similar type of panic when I saw my coins not in explorer but found them in the wallet in another change address. However your second post here seems that you did remember the transaction that you had done.
Are you sure it was a "temporary memory loss"? Or are you trying to feign something because you are conscious about being called a fool? There is nothing to be shy about sending money to wrong address, happens with even the best of the best.
Still I think the first post that you made seems that Electrum had sent the money to a change address. These are nothing to make you worry and you can turn off this feature as well in you wallet UI. Those coins in change are still yours if they are there.
Is there a way to switch off this feature in Ledger Nano S? It has now created 5 addresses in my wallet and there is no option to choose a specific sending address as it chooses that on its own. Some addresses contain less than 0.01 btc which may increase the required network fee.