Be careful taking omeprazole. While most people can take it without problems, there are a few people who will develop delayed gastric emptying from it. I was one of those few people.
Symptoms of delayed gastric emptying can be bloating, burping, severe reflux from food setting in your stomach too long, sore throat usually develops because of the reflux along with mucus in throat. In worse cases abdominal fullness & vomiting.
Hope you will be feeling much better soon.