Hiding Ana

I've been anorexic off and on for 3-4 years. Hiding it isn't easy. I've actually told my parents twice, but they thought it wa just for attention and ignored it. I've told other people about it, but only those I knew I could trust. Tips for hiding Ana? Well, I throw food away when I get to my room, only eat when my parents are present, feed some of the food to my pets, say I'm not hungry, I've already eaten, just things like that. I hope this helps!