Hello,
I would suggest you to undergo liver function test, upper GI endoscopy,
ultrasound abdomen, and ESR after getting examined by a GP. The causes of
stomach discomfort associated with nausea includes
dyspepsia or acidity, liver disease, esophageal pathology,
gall bladder inflammation, and
pancreatitis to name a few. In addition, limit your intake of caffeine, spicy, processed, and fatty food. It is better to avoid smoking, and alcohol intake as it may worsen symptoms. Moreover, eat small frequent meals, and you may take antacid medication like Gaviscon available over the counter for stomach discomfort.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Ayesha Shareef, General & Family Physician