Pluerisy Spreading From One Lung To Another Pain In My Left Side...Please Help!?

Pain in my left side...Please help!? - pluerisy spreading from one lung to another

I am a woman of 30 years. A year ago I went to the emergency room because I had severe pain in the chest near my heart. She has developed a small test and sent me home with some painkillers. The next day I went to my doctor and he told me I pluerisy and gave me an anti-inflammatory. The problem is that I have pain in the Dominican Republic with the same again. He made an X-ray and was not able to find anything wrong. I need to know what's wrong with me so I can improve it. I hurt my left side under the left breast, near the coast and close to where my heart I do not think it has nothing to do with my heart, but. Sometimes I have a feeling that is spreading on the right side of my body. The doctor wants to where the pain is what helped a little but, but the painreturned. Who knows what might be going on with me ?????????