<s>[INST] I m having lots of pressure and a dull pain in my chest. I feel resistance when I take a deep breath, cough, or if I push abit to go to the bathroom then there s a strong tightness in my chest. My X-ray and EKG came back normal. I also have difficulty breathing some days [/INST] thanks for your question chest discomfort can be due to gastritis , peptic ulcer and certain lung and heart diseasesyou need to see a pulmonologist who can request for some investigations and examine the patient and come to a conclusive diagnosis thanksfeel free to ask more questions may god bless you with good health </s>