"Yes, we've lost a couple of games but we have gone down to Swansea and Nottingham Forest who are two of the biggest sides in this League.
He added: "It was a pretty tight game and the pleasing thing for me was that we didn't lie down and die when Forest scored their second goal. We came strongly in the last 15 minutes but it was a case of too little, too late."
Opposition reaction
The Shrimpers fell to their second successive defeat against a Nottingham Forest side inspired by new signing Nathan Tyson but Tilson said afterwards: "I thought Forest started the second half a bit nervously, but they got a bit of luck for the goal and that proved decisive.