Is this anorexia? Help?

I am 16 years old, 5"4, and 93 pounds. I always loved food, but lately I have developed bad anxiety and whenever it comes time to eat, nothing sounds appealing and I don't even feel hungry if something does sound appetizing. I used to weigh 110 but then dropped to my current weight. I make sure I eat a little something at every meal (or at least when people are around so I don't get a lecture about food), but I really don't want to. I'm not worried about my weight or my appearance, I just don't wan to eat anymore.