Thanks for your question.
You need to rush to ER.This may be pain related to appendicitis which needs emergency evaluation and treatment.
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Thanks for waiting.
There are few possible causes of such pain and these need to be investigated and evaluated.
The possible causes would include dyspepsia,appendicitis and small intestine obstruction.
As pain has been persisting for 2 weeks it is more likely to be appendicitis.
You need to visit ER to get the problem evaluated and treated.
Please reply if you need any clarification.Do take a moment to rate my answer if done for now.You can always come back to seek any clarification.