hi
I read through your question and understand your concerns, I would initially like you to calm down,
based on your querry , i may suggest you to watch out for the following signs which when present immediately take him to a nearby doctor,
-obstipation( not able to pass out gas)
-persistent
abdominal pain despite medication
-any green colour vomiting(bilious vomiting)
-or blood in faeces
- developing fever
-any urinary problems ? such as not able to pass urine freely or burning densation when urinating.
according to what you have mentioned
considering if the x-ray is normal, you may have little to worry
the
milk of magnesia is a basic drug, try the foll: medication and if still the symptoms don't subside it is better to re -investigate and examine for other causes.
-T.Pan-D 1-0-0(before food)
-syp.
sucralfate 1-1-1(before food)
-syp.dupholac 0-0-1(15 ml in half glass of water
at night after food)
If these medications fail to alleviate your grandfathers symptoms it is better to check for other causes.
wish u a speedy recovery..!!
god bless..