If, along with the symptoms you have described, you also find it difficult to breathe or laugh without experiencing pain, and suffer pain after elongated periods of sitting down, then it could be that you have a collapsed lung. If this is the case, you should see your doctor as soon as possible. If you regularly work out, the pain could be due to a pulled muscle, a fractured rib, or inflammation of the cartilage between your breastbone and your ribs.
However, the fact that nothing showed up on your chest x-rays would suggest that your problem is something else. Do you experience indigestion, gas, bloating, constipation, headaches, or find that your stools are a pale or chalky color? If so, then you could have a gallstone problem. Gallstones are hard lumps which form in the bladder when it is not functioning properly, and can cause severe pain until removed. To start the healing process you should go to your doctor and request a stomach and an ultrasound scan, which will pick up any abnormalities in your gall bladder. If your symptoms are more severe, you experience fever, bouts of pain occur due do deep inhalation, or can last up to 15 hours, then it could be that you have a gallbladder attack. If these symptoms sound like ones you are experiencing along with the ones described in your question, then you should seek medical attention immediately.
Your pain could also be due to Irritable Bowel Syndrome. Although this would have to be diagnosed by a doctor, attempts to eliminate the symptoms of Irritable Bowel Syndrome would include regulating sleep patterns, taking regular exercise, and including a higher amount of fiber in your diet. These changes would benefit anyone, not just those with Irritable Bowel Syndrome, so you have nothing to lose by making these changes, especially if your symptoms reduce as a result.
However, the fact that nothing showed up on your chest x-rays would suggest that your problem is something else. Do you experience indigestion, gas, bloating, constipation, headaches, or find that your stools are a pale or chalky color? If so, then you could have a gallstone problem. Gallstones are hard lumps which form in the bladder when it is not functioning properly, and can cause severe pain until removed. To start the healing process you should go to your doctor and request a stomach and an ultrasound scan, which will pick up any abnormalities in your gall bladder. If your symptoms are more severe, you experience fever, bouts of pain occur due do deep inhalation, or can last up to 15 hours, then it could be that you have a gallbladder attack. If these symptoms sound like ones you are experiencing along with the ones described in your question, then you should seek medical attention immediately.
Your pain could also be due to Irritable Bowel Syndrome. Although this would have to be diagnosed by a doctor, attempts to eliminate the symptoms of Irritable Bowel Syndrome would include regulating sleep patterns, taking regular exercise, and including a higher amount of fiber in your diet. These changes would benefit anyone, not just those with Irritable Bowel Syndrome, so you have nothing to lose by making these changes, especially if your symptoms reduce as a result.