As i take Naproxen for Arthritis pain I was given Omeprazole but never took them... I know Im silly... but now am getting the most agonizing pains in upper stomach especially bad if I am hungry, I almost called Paramedics last night but it has literally just eased five minutes ago. I burp like a trucker the walls shake..I feel so sick especially in the mornings and am definitely taking the Omeprazole now daily... should I bother the doctor about the pains I am getting? Could it be a stomach ulcer please? Thank you