Article continues below advertisementLaguna Beach may have ended its run on MTV back in 2006, but star Kristin Cavallari still remembers the negative thoughts that played in her mind during filming.The reality TV star, 38, opened up on the November 4 episode of her podcast "Let's Be Honest" about how she was embarrassed of her body image on set and often would try to hide her stomach when in front of the camera."For me, personally, growing up, I always had a really negative loop playing about body image. I always felt like I was kind of fat growing up," she began.