If I vomit blood , suddenly lose consciousness, find difficulty inhaling and have a weak heart , what do I have ? i have a weak heart but i don t know what ailment i have. first, i had a difficulty breathing, then, I vomited blood. as i tried to go back to bed, i suddenly collapsed and lost consciousness. when i finally restored my consciousness, i couldn't remember what happened. am i really in bad shape ? what should i do ?