Will prilosec caused trapped air in my stomach?

Consider these...: Aerophagia (swallowed air) distends stomach &may result in burping. Also, gassiness/ stomach distension after meals can reflect: 1) partial gastric outlet obstruction due to gastritis/ulcer; 2) pyloric narrowing from scar; 3) gastroparesis due to delayed emptying of stomach (as w/diabetic gut neuropathy); 4) bacterial overgrowth in gut; 5) any malabsorption; 6) pancreatic maldigestion 7) lots more

Not a bit: but the conditions it is used for will. Ulcer, hiatal hernia, reflux all feel like trapped air. Prilosec mostly helps some/all of the symptoms associated with those.