Experiencing pain in both sides. what could cause worse pain on my right side just below my ribs, when i lay on my left side?

Many possible causes: Pain in the abdominal area (below the ribs) is a common complaint. There are many causes of pain in this area from the simple (constipation, gastritis, muscular) to the moderate (kidney infection, ulcer, pneumonia) to the complex/dangerous (kidney stone, tumor, to name a few). I recommend a complete evaluation with primary care including blood work if needed and follow up with specialty as needed.