In general, potato is not a gas forming food. I would recommend you try avoiding 100% of all lactose from your diet for 2 weeks to see if that helps.
thanks for the reply. I have no much control on foods, But Potato, like excessive gas forming food noramlly I avoid, I think need to try with avoiding diary products.
Welcome to the gastroenterology community! Have you tried eliminating different foods from your diet like lactose?