Hi friend ,a proper history taking is needed to make an accurate diagnosis, consistency of ur stools ,any blood ,mucus or undigested food ?abdominal pain , nausea and bloating ? Any particular food triggers? experiencing any weight loss ,any difficulties in controlling bowel movements,family history of gastro intestinal problems .
With the given history it seems like IBS , however to rule out other causes is important ,so U may need to do blood test , colonoscopy and lactose intolerance test.
Next Steps
Gastroenterologist consultation.
Health Tips
You can try diet modification: avoid spicy ,fatty , caffeine foods , if it's stress or anxiety induced cognitive behaviour therapy can helps , if any weight loss must immediately consult a gastroenterologist.