The Repsol Honda man came into the meeting in Czech Republic two weeks ago on the back of 10 consecutive victories, but his spell of dominance came to an end as team-mate Dani Pedrosa topped the podium.
Marquez finished fourth in Brno, behind the Yamaha duo of Jorge Lorenzo and Valentino Rossi, meaning his overall lead in the world championship stands at 77 points, with Pedrosa his nearest challenger.
Ahead of the weekend's action in the United Kingdom, Marquez feels the end of his streak has removed the weight of expectation on his shoulders.
"Brno was a difficult weekend but the most important thing is that we took important points," he said.
"Also, I feel less pressure now as I know everyone was expecting me to win all of them, and it's the championship that's important, not winning every race!
"We had a good test on the Monday and then some time off after a hectic back-to-back schedule. Last year my race was affected by my crash in warm-up so this year I hope to be fully fit so I can give it 100 per cent in the race."
Pedrosa, meanwhile, is feeling confident after clinching his maiden win of the season last time out.
He said: "I'm feeling good at the moment after winning in Brno and then we had a positive test on the Monday. It was a gruelling few weeks with two races in a row and so this past week it's been good to recharge the batteries.
"Last year in Silverstone I was out of the battle with Marc and Jorge so this year I want to be sure to be up there with them."
Lorenzo, who won last year's race ahead of Marquez, is in a similarly positive mood after some consistent performances in recent weeks.
"After three consecutive podiums I feel good," he said. "In Brno we found some good solutions that surely will give us at least a 10th [of a second] in the next races.
"I feel quite good and we are going up through the championship. We must congratulate the team for their work in the last races and especially during the last one at Brno. We're happy and confident for the next race."