<s>[INST] my dad has been diagnosed with copd. now he has where his stomach swells and hurts and it is very difficult for him to breathe. he has not been feeling well at times and spends the day laying around. gets lightheaded and stomach hurts on those days. what does he need to do? [/INST] Hello. Thank you for asking way you explain I can understand that the COPD it might be of grade C-D or stage III-IV. In COPD patients there are other problems out of the lungs for example cardiac, muscular,osteoporosis, gastro-intestinal. Especially in patients in whom predominates the bronchitis type of COPD there are several in their digestion system. They may have intestinal gases, gastritis refluxes. For this they should have a careful diet to do sports and to Chat Doctor. He will feel better for sure. Thank you </s>