“Chicago P.D.” star Tracy Spiridakos revealed a modeling agency once circled her “body flaws” and told her to lose weight at age 17. Spiridakos recalled on Monday’s episode of the “I’ve Never Said This Before” podcast that after winning a modeling contest, one of her brothers took her to a meeting at a modeling agency, where she was told to put on a bikini for a photoshoot. “I went, I put the bikini on, I came out and they took Polaroid pictures of me and then laid them out in front of me, and took a Sharpie and circled all my body flaws and laid them out and they said, ‘You have to lose weight here, here, and here if you want to do…