Most writers are book lovers and avid readers from a very young age. It's true for me as well. Some of my fondest memories from my childhood are related to books and reading. My mom would take us on bi-weekly trips to the local library. I always looked forward to those trips with anticipation, eager to find new books to read, new authors to love. Even today, I go to the library every two or three weeks and get out a stack of books.
I love to read, but becoming a writer changed reading for me. As I learned the mechanics of writing such as point of view, passive voice, showing versus telling, and the like, I found myself noticing these things in the books I read. At first it was just a passing notice when point of view changed, or passive voice was used, etc. Unfortunately as I grew as a writer, I had a harder and harder time turning off the editor in my brain.
While I still read a book in a week or so, there are times when I can't read a book because I notice things that a non-writing reader wouldn't necessarily notice. My sister and I read a lot of the same books. Sometimes, she'll ask me if I've read a certain book and I'll be honest and say that I tried but couldn't finish it because of XYZ and she'll say, "I didn't even notice that." I wish I could turn off my internal editor when I'm reading for pleasure and turn it back on when working on my manuscripts. I'm sure I'm missing out on some great stories because of it.