thank you.upper abdominal pain
with anemia indicate some disease of upper GIT.peptic ulcer disease
is the most possibility. have you any history of vomiting
out of blood or passage of black tarry stool ? gastroscopy is confirmatory for this. serology for h.pylori may be done. if these are inconclusive then other inv.should be considered like USG of abdomen. dizziness
is due to anemia.you have to check Hb level also.