Now me taking insulin and medicine.and also pain...

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Thank you for your question.
our dear customer

What are the causes of right and left side stomach pain?

Gases
Irritable bowel syndrome
Stomach ulcers
Acid reflux
Gallstones
Kidney stones
Viral gastroenteritis

What is the treatment of right and left side stomach pain?

Over the counter medication as antacids
PPI as omeprazole
Amoxicillin
Stop smoking
Avoid alcohol
Avoid spicy and spirits
Avoid caffeine

What are the required investigation?

Blood glucose level
Blood pressure monitoring
24 hr. gastric acid monitor
Blood count
Blood chemistry
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khaled jaber