I am sorry about the delay, it appears that you are no longer online.
I was offline earlier :-)
ANyway, in regards to your query, the most common cause of this would be GI reflux- this can give you the sensation that food is stuck and causes you indigestion.
Now movicol is a laxative.
You need a medication which is effective for reflux
That would include famotidine, ranitidine- pills to be taken daily
Maalox and mylanta for symptom relief
ALl of these are available in Ireland and UK
You should also avoid spicy food, acidic food, caffeine, chocolate and alcohol
do not eat 3 hours prior to bedtime
If you do not feel better after 2 weeks of trying this, then you need to see you physician for diagnosis and treatment
but I am 95% positive this is what you have
keep me poted
please leave positive feedback if this helped :-)