Am i anorexic? please help....?

I know you have elected to be a vegetarian. That is ok. But, maybe if you tried some meats it would help you to get a better appetite. The stress can make you lose a lot of weight. Your weight is not bad for someone 5'6". If you can maintain that weight without losing anymore, you will do alright. You may have to get some professional help in your attempt to gain weight. Many females go through the same thing and end up perfectly.