My stomach always remains bloated

I am on the slimmer side and at the lower end of my healthy weight for my height, however, whenever I stress I get terriblleeeee cyst pain and g stomach bloats out a lot. The bloating lasts for days and it looks like I’ve held in pee for days because of how much it sticks out.

Is there anything I can do to manage this? I’ve tried limiting the amount of sugar I eat and stopping it all together at one point, but it didn’t really make a difference. I walk at least 10,000 steps a day too.