Constant Battle with Food

Since I was young I've been so hung up on body image and eating. In middle school and some of high school I was underweight and starving. I would near pass out daily and always saw those dark spots in my eyes. I am certainly not underweight anymore (I am 5'6" and 132 pounds) but I still feel so much guilt and anxiety after eating larger amounts of food. I constantly feel like I am gaining weight when my weight never really fluctuates that much. I wish that I could just feel comfortable with my body and my eating :(