How can I make myself throw up? (read details before you lecture me...)?

I feel really really sick... I don't know why. I haven't been hungry for the past few days but I'm still eating. After I eat, I feel like I'm gunna spew! My body won't let me, though... I tried the finger thing and the toothbrush but nothing happened. I'm not bulimic or anorexic or anything, I'm just feeling really gross and nothing is working. Is there an effective way to do this? I won't drink anything either cuz I know stuff like that can make you really really sick. I don't understand the problem. Help? :/