I took omeprazole and similar derivatives for extended periods and while they annihilate symptoms, after a couple weeks of not taking them, symptoms always come

I took omeprazole and similar derivatives for extended periods and while they annihilate symptoms, after a couple weeks of not taking them, symptoms always come back. Also it gives me itches in the long run which is part of the list of side effects. I probably have work to do around diet and need to consult a doctor, definitely (they are prescription medicine where I live and it's not always easy to get an appointment).