With the score locked at 1-1, Forest skipper Morgan Gibbs-White won and converted an 89th minute penalty for the winner.
Nuno remarked afterwards: "I think we did enough good things to win the match today. The boys really worked hard. We got the advantage, we scored a goal ruled out by fine margins of offside, that was the moment of the game, and a lot of incidents happened, but I've got nothing to say about the hard work.
"That was the idea (score early) and the boys did it. We had good combinations and control, we had good threat in attack. It was a good first half. We started the second half well. There was a foul on the edge of the box on Summerville and then that leads to Forest breaking out. This takes the mind out of the players and makes it hard to explain how things happen."
On the penalty, Nuno stated: "It happens so many times during the matches that you get confused about the rules honestly. How many times has this happened and penalties have not been given? So I don't quite understand. Areola goes for the ball, Soucek takes the ball out and then he cannot stop his movement, so hard to explain.
On the mood: "We to keep believing and sticking together. It's not over yet. We keep on going."
Asked about the home fans, the manager also said: "It's hard to ask them anything. It's hard to explain. We understand their frustration and the sadness and we are all the same. What to say? Keep helping us. Again they showed today when the team gives, they give back the support that we need. Today the boys showed that we are here to keep the fight.
"You know me. I'll keep on going, believing and working with the boys. Sometimes you have good moments and bad moments but you need to be resilient enough to understand that this is the game."