Hello dear Amir , hi
Warm welcome to Healthcaremagic.com
I have evaluated your query for your father in details .
* There are many more reasons for the stomach pain as
gastritis ,
duodenitis , ulcer , inflammatory lesions , tumors , others .
* Need assessment with all details of symptoms , study of reports done
till date to decide the further line of management .
* The raised BP and pulse are reflex physiological phenomenon due to
intensity of the pain itself .
Hope this clears your doubt .
Wishing him fine recovery .
Welcome for any further guidance .
Regards .