A wide variety of comments, as expected. There is NO 'OmAprazole' - in the title -- but OmEprazole is one of a group (of ???-prazole meds) prescribed to a huge subset of the UK population. Like Statins, there are several, and doctors may well have their favourites.
I'm one who has been switched from one statin to another, and for a few years now I've been on Lansoprazole, one a day, usually a bit before evening meals. If I forget, missing one day doesn't seem to matter much, but more than that and my Acid Reflux rears up again (literally!) as many sufferers will know!
If the OP has a problem, best try a doctor rather that rely on "everyone I know says" -- as some of those 'everyones' may be passing on the most ill-informed twaddle?!
As several comments said, people do differ greatly. I found on a search re Omeprazole that takers should :- maintain a healthy weight by eating healthily. do not eat foods that can make your symptoms worse, such as rich, spicy and fatty foods, and acidic foods like tomatoes, citrus fruits, salad dressings and fizzy drinks. cut down on caffeinated drinks, such as tea, coffee and cola, as well as alcohol and smoking.
Well, I eat lots of tomatoes, and drink lots of tea, doesn't seem to affect me --- but I DO certainly have to avoid anything spicy!