Hi.
Thanks for your query.
The history is suggestive of a problem which is involving the lower chest and upper abdomen.
I would advise you to go for a clinical / physical examination as this can detect better than the investigations ; for example the breathing sounds,
rebound tenderness are the clinical entities and to be elicited by a Doctor himself.
After clinical examinations the relevant investigations can be advised ; which h in your case can be :::
*X-ray chest to start with
*Ultrasonography- it can detect the pleural fluid too as well as the
gallbladder, liver and problems if the whole abdomen.
*
CT scan for confirmation
* Routine blood tests including liver function tests, blood sugar
* Urine and stool tests
* Standing X-ray of the abdomen to see
intestinal obstruction.
* upper GI
endoscopy if suspected to have acidity related problems.
The treatment will depend upon the findings.