Hi, I am a seventeen year old female. I bent over last night to pick something up, and collapsed to the ground with severe left side chest pain. It was over my breast, and I was extremely short of breath. A sharp shooting pain came when I would breathe through my mouth, and I had to take short breaths through my nose for is to subside. Today, nearly 24 hours later, I am feeling much better, but all of a sudden feel short of breath. Help!