I feel sick is the sixteenth of thirty-eight cinematics shown in The Last of Us. It is approximately forty-two seconds long in length. Below is the complete transcription for this cutscene's spoken dialogue.
Note that the dialogue is copied from the subtitles.
Ellie: "Man..." [lowers handgun.] "I shot the hell outta that guy, huh?"
Joel: [Stands up.] "Yeah, you sure did."
Ellie: [Sits on nearby crate.] "I feel sick."
Joel: [Snatches handgun.] "Why didn't you just hang back like I told you to?" [Walks off, unloading then reloading the gun.]
Ellie: [Looks at Joel.] "Well, you're glad I didn't, right?"
Joel: [Chuckles.] "I'm glad I didn't get my head blown off by a goddamn kid."
Ellie: [Stands up quickly.] "You know what? No! How about "Hey Ellie, I know it wasn't easy, but it was either him or me. Thanks for saving my ass!" You got anything like that for me, Joel?!"
Joel: [Pauses.] "We gotta get going." [Walks off.]
Ellie: "Lead the way..."