Hi thanks for contacting HCM. Dear you have not mentioned which drug you have taken... Noted you have positive h.pylori .. So omeprazole , amoxycillin and clarithromycine combination drugs taken for 14 days which is standard regimen.. If you have taken above regimen then you could have now simple gastric problem might be by constipation with headache or functional bowel disease. Take more fruits with water and green leafy veg for few days.... Avoid excess spicy and fatty food for few days. If difficult bowel movement then fiber diet taken more like apple , banana, whole grain etc.. If still problem USG and endoscopy examination might needed... Take care ... Dr.Parth