There is no point in taking morphine
for the pain. It is a temporary measure to treat intractable pain
. Unless the cause is identified the pain will not disappear.
Please go to the ER at the earliest and get an ultrasound
scan of the whole abdomen done.
Taking morphine or other pain killers will mask the underlying pathology like intestinal perforation
, if any.
Please follow my suggestion and take a wise decision.
Get well soon.