Whatever i eat or drink it causes gas.

Hello sir. I had problems in March 2020. I used to have gas and bloating, can't eat food. I checked my lft where I found joundice. I started having medicine, pan-D, Sorbiline syrup for 3-4 months. I got absolutely fine. But in mid of December I took ivermectin tablet twice in the gap of 7 days. I don't know why I start feeling sleepy all the time, and sometimes I got gas and feeling like lightheaded and pain in upper left side chest and upper left side back plus pain on side of the upper left chest. Pain is very mild but I start feeling discomfort. Until I drink water or take gasofast it comes and go. I made lft, blood sugar and BP test. In lft bilirubin is 1.21 sgpt is 49. B-sugar fasting - 93 And BP 140/90. My doctor gave me pan 40, Sorbiline and udiliv 300. I am taking these medicine for 20days. I lost 5kg weight. I am walking 4 km daily. Having homemade food, less oil and spicy. But still getting acidity sometime and pain in upper left chest and upper left back and feel discomfort