I have a really sharp pain just under my left boob, I can't put pressure on it or lay on my left side as it throbs and it's really uncomfortable. It also hurts when I take deep breaths, I've tried taking tablets and I've put ibuprofen gel on it but it hasn't worked. I'm not sure if I just slept in a weird position and pulled a muscle. Just wondering if anyone knew what this could be from? I'm going to make a doctors appointment if it's not gone in the morning. Thank you!