Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
As you mentioned the symptoms such as loss of appetite, upper GI burning the IBS has altered bowel habit with
abdominal pain relieved after defecation and after eating food there is a urge to defecate.
The possibilty of GERD is there. Upper Gi
endoscopy will be helpful. If such patients come to me with these symptoms, before going for endoscopy, I will prescribe following medicine with lifestyle modification.
Syrup
antacid after every meal and before sleep
Capsule
Omeprazole 20 mg before breakfast in the morning
Tablet
Metoclopramide 10 mg twice before food
Tablet Itropride 50 mg before every meal
Reduce intake of coffe, smoking, fatty meal
Aviod large meal
Don't go for bed after eating, wait for 3 hours atleast
Before sleeping, head size must be 9 inch above
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Wasim Murtaza