first you should go for usg-abdomen by consulting general surgeon
in your area,bcoz pain could be due to a/c pancreatitis
,stones in gall bladder or it may be due to serious causes like intestional obstruction, appendicitis
.. etc,&are life threatining. till then take tab rantac150 ibd,tad anafortan 1bd along with gelucilmps sup 2to3 tsp on empty stomach provided thery should not be any delay in getting ultrosound abdomen.ok take care.