I have bulimia, should I be worried? please I need some support and advice.?

Yes. You're body needs nutrients and you obviously aren't getting them this way. You won't be as strong as you would be if you were eating 3 healthy meals a day and keeping them down. As well, you're destroying the lining to your esophagus. Even if your mom isn't willing to help you, you can always ask a friend, councilor or someone you trust to get involved. Try eating more fruits and vegetables as well as protein, your body can't function on all those carbs.