Talk to Gastroenterologist on Stool Urgency

For the past 2 years :

First Stool is normal in shape and size Sometimes second or third stool is small or watery Strong lactose intolerance Need to go to washroom after breakfast in the morning No abdominal pain No blood in stool No weight loss No feeling of incomplete evacuation Don't have to sit for longer time in bathroom No waking up at night due to pain or urge to go to washroom

Urgency is the main problem if i'm traveling or going to any function yehi kisi b waqt ek dm sy urgency aaa jati aur mjhy jana prta hai i can't have a normal life.

Mujhy konsy tests krwany chahye aur kya mjhy colonoscopy krani chahye? and is it treatable or i need lifelong medicinds jo humesha chlti rhengi?