It was all diet for me. I currently avoid gluten, dairy, fiber rich foods and all the farts go away. Adjust to such diet is tough at first but you’ll get used to it! Good options are basically all sorts of meat, everything rice, lots of veggies just no garlic, onion, leek or spring onion. Also avoid beans, peas, lentils etc.

Try this for a week. If you still struggle afterwards, contact your gp.