Dyer played 90 minutes for the first time since November 2010 on Sunday when he replaced Jose Bosingwa in the opening stages of QPR's 2-1 defeat to Tottenham.
Before the game Dyer had only played 24 minutes of top-flight football for Rangers since signing for the London club on a free transfer.
The 33-year-old picked up an ankle problem six minutes in to his debut last August and then suffered a setback in his rehabilitation before sustaining ligament damage in a reserve game against Spurs which ruled him out for the remainder of last season.
Kieron Dyer: "If it had been a repeat of my hamstring injuries then I would have worried about my career, but the injuries I had last year were just freak ones.
"Not once did I get down. I just thought that if I get another chance then I'm going to prove everyone wrong. I got a lot of messages of support and the new contract was a huge vote of confidence for me.
"Neil Warnock was devastated when I got the injury. He said to give it a few weeks and then we'd sit down and talk about the future. But then there was a change of manager and Mark Hughes pulled me straight away and said he wanted to give me another chance.
"He said: 'I want you to get fit and next season we're going to give you another chance because I've played against you in the past and I know what you can do'.
"I've been called a lot worse than injury-prone, trust me.
"I've been hammered many a time through the years and you do develop a thick skin so it doesn't bother me. I've been called every name under the sun, but if I stay on the pitch then I know I'm going to prove the doubters wrong.
"I hope I've got a lot of games left in me.
"Yesterday was a good test for me, I'm gutted we didn't get the three points but from a personal view it's going well.
"I feel 100%. I felt I was up and down like a young Kyle Walker, especially in the first half. The hamstrings held up well and playing against one of the best wingers in the world in Gareth Bale was a good test."