Ive had this sharp pain under my left breast for a few weeks now, it began when I was lying down in bed one night and turned sharply, and since then it has become more frequent. I am currently having it and it feels like when i take a deep breath in something is clamping down on my heart getting ready to burst, i felt a bit light headed and faint but my mum said that was a bit of a panic attack, ive taken a nuerofen but i am still in a lot of pain, and i cant take deep breaths in, ive googled it and found some theories, but i want to know how to get rid of it?