Hi
Thanks for posting your query
Your information points to drug induced gastritis
It is a situation where the mucosa is inflammed because of long term use of medicines
Do not take painkillers, they will have no effect
Instead take a
proton pump inhibitor before breakfast till your medicines continue
The feeling of food sticking is also a sign of reflux disease
DO not take spicy and fermented meals
Lie down on your left side and do not stoop
Take small frequent meals
If these do not work, consult a Gastroentrologist and get a
Endoscopy done
Hope this helps
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Get Well Soon