I'm petrified of gaining weight and feel sick after eating. I haven't eaten in 2 days now and still feel sick.?

I am a 24 y/o F 5 feet 7 inches and weight 210lbs. I have been dieting lately and recently I feel so nauseous and I almost vomit after each meal. It's making me want to voluntarily vomit after each meal so I don't feel so full. I don't want to eat. It's helping me lose weight which is great but I know its not healthy. Is making yourself vomit when you feel sick anywyas bad? Even fruit makes me sick. What should I do?