What it sounds like is an esophageal reaction to reflux. When you have reflux that persists it can create that type of swallowing problem. I'm no doctor, so I'd recommend you follow up with him/her regarding this issue. I rather doubt it has anything to do with the omeprazole, but your doctor may want to change the medication you're on.
Nissen Fundoplication 2/09
Allergy/Asthma"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”