Abdominal Pain. Normal like before.

I hve right abdominal pain from past 6 months..If I eat sweets, little bit oily food which includes coconut oil or ghee, spicy food, meat & full meal I feel pain. If I burp after eating above food I feel pain. normal food like less rice with curd & less sambhar don’t have pain. Even idli sambhar pains my abdominal. Fruits&vegetables don’t cause pain. Sometimes I hve sticky stool when I have normal food and all above food.1)ultrasound-grade 1 fatty liver was diagnosed (doc told normal) 2)blood test - Hemoglobin, RBC and platelet indices, wbc differential count, Alkaline phosphatase, Bilirubin(Total Direct, Indirect), Lipase, C-Reactive Protein, Glucose Random3)Endoscopy completed everything is normal. I am having rice and curd with vegetables. i am having weight loss from past 6 months 78 to 66 kgs. how 2 become normal like before. Tab after blood test–Esomac 40,Rifagut 400 &Velgut(pain worsened).Tab after endoscopy-Famocid 40,evlon400(no pain with normal food like less rice with curd)