Hii my weight is 43m very slim I have stomach ache and gastric issue after meal m facing gas problem I wake up the also my stomach ache even sometime I feel constipated sometime OK I take pantoprazole tablet and some time erito forte bcs last 5 months m facing little sleeping problem my thyroid was normal my b12 ,272.90 last year I had scan was normal and tissue transgluinLGA serum test that was 0.7 but last 3 months m facing gastric issue even m eating healthy homely food prefer me a test so I can know what is the problem my body facing even I don't drink milk also can I go with stool test plz suggest me