I have been throwing- up all of my food for almost a month. Like.. even if i take a tums or rolaid or something.. i comes up. i haven't lost ALL that much weight.. .but last night i am kinda pretty sure i through up blood! I have done this in the past.. but it never hurt very much.. and about 2 months ago.. i went into the hospital and had some test done.. that didn't show anything. I am not wanting to tell my mom about the blood thing.. because i am not sure it was blood.. i just am PRETTY sure. So.. what could it be? I am almost 16 and it's freaking me out!