Hi thanks for contacting health care magic. Noted you are taking buprenorphin drug. This drug used for opioid addiction patient or for chronic pain. You might have drug induce liver affection. The dyspnea problem might be from excess stress lead to panic attack and so dyspnea... Try to avoid stress in routine activity. Daily exercise is effective antidote ... Yoga and meditation helpful... Avoid excess fatty diet. Alcohol avoided. If need for smooth bowel movement fiber supplement needed. Kiwi , cooked oatmeal, avocados good food ... If still digestive problem remain USG or endoscopy needed. Take care.. Dr.Parth.