I am having abdominal pain, mostly on left side, on sides and under ribs for more than a year now. Recently sometimes i have also experienced pain on right side of abdomen below ribs. I generally feel weak and get exhausted quickly. My father was diagnosed with neuro endocrine tumour with CA in small intestine. I got a master health check done recently with no major problem detected, ultrasound was clear, unconjugated bilirubin was high and platelet counts were on lower side (B complex levels were below minimum). I suspect some problem in the abdominal area, what should i do.