You can't spend, transact any Bitcoins while you are offline, the easiest way after Electrum sweep and or import is by trying blockchain.info import your address as watch only and when you click on send or spend it will ask you for private key.
Stop being paranoia and trust me when I tell you, no body is ought to get your coins that easy.
Now tell me how many BTC you have BTW? I could pick some of them from your shoulders if you feel burdened. lol