IBS-like symptoms

So I've been having IBS-like symptoms for a while now but recently it got worse. Gas, bloating, nausea, fatigue. It was hard to figure out why. I only know it would get much worse when I drink milk. But I usually avoid lactose. Recently I figured out a possible cause. Fructose malabsorption. I've been eating a lot of fruits daily, at night before I go to sleep. Then I wake up sometimes feeling bloated and tired. Think I'll avoid/reduce fructose from now on and see if it gets any better. Hopefully it does, and I'll be rid of this chronic condition.