Been sick for 3months on antibiotics first it was mykidneys were infected then my ears an sinuses then my stomach now my sinuses again why aminotbetr?

Recurrent infections: Kidney infection is separate ,but sinus and stomach may be related. if having reflux , the acid refluxes into the sinuses and ears during sleep. Raise head of bed 30 degress by placing a pillow between the mattress and boxspring. Consider zyrtec to decrease nasal discharge and prevecid for reflux. Check for h pylori and thyroid function.Try Vit C 500-1000 mg/day if no renal stone F/U with MD