Young midfielder says he is unhappy to have been left out of the final 23-man squad for the European Championship in Denmark, but admits he has fears over burnout
Gunners boss Arsene Wenger had previously expressed fears that the youngster may experience burnout if he participated in the tournament, having made 49 appearances at club level this season.
England Under-21 boss Stuart Pearce has now decided to leave the midfielder out of his squad for the tournament, with the player disappointed having constantly maintained that he would liked to have been a part of the final 23-man squad.
"My main emotion is frustration," Wilshere said, according to The Mirror.
"Obviously the fact that I was going to get injured, I didn’t want to hear that. That wasn’t good for me.
"Over the last few weeks, I started to get a bit tired and I spoke with the manager at Arsenal and the fitness team and I spoke with Stuart Pearce and I told him.
"I said I wanted to go but I was a bit concerned with my fitness. When they showed me the stats, it didn’t really sink in at first, but it just kept going down, on a downward spiral.
"It scared me a bit, made me realise [that] as much as I’m 19 and can keep going and keep going, there’s going to be a time when you’re going to hit the wall.
"Maybe that was coming. Over the last four games, after about 60 minutes, you feel a bit more tired than you did in January."
Wilshere also insisted that he still wants to play for the Under-21s, but admits that it is in everyone's best interests that he does not play for the side in Denmark.
"When I said I wanted to play for the Under-21s, I meant that," he said. "I wasn’t lying. I wanted to play and I still want to play so that’s why there’s frustration.
"But I think it’s the best thing. Obviously there’s a risk of injury and missing some of next season if I had gone to Denmark.
"I’m not saying I would definitely have got injured but I want to be 100 per cent. I didn’t want to break down next season or going towards the Euros.
"I am 19 and I have just got into the England team and there have been players like Steven Gerrard injured so I can keep my place in the England team.
"And with the Euros coming up, it was in everyone’s best interests for me to rest. I think Stuart Pearce agreed with me. He’s been great about it.
"Even today, if they had announced that I was in the squad, I would have gone. I would never have pulled myself out and said ‘I’m not going’."