question: Last night i was working at wal-mart, when i started feeling lightheaded, and weak. So i thought it was dehydration. So i went to get a drink of water. after i had my drink of water, i felt like i was going to puke. So i ran to the bathroom, where i proceeded to vomit projectically... i felt something pop in my chest and i started coming up with blood and nothing else. The rest of the night ive had a really sharp pain in my chest that hurts whenever i drink anything.