What was found
FA'S COMPLAINED OF LIGHT HEADED AND NAUSEA, ESP IN BUSINESS CLASS AND 1ST CLASS, ELT LACK OF AIRFLOW AND STRUGGLED WITH BALANCE ISSUES AND FELT THEY WERE IN A CONSTANT TURN, SEVERAL PAX COMPLAINED AS WELL. NO FUMES OR SMOKE WAS NOTED, PRESSURIZATION WAS ROUGH IN TURNS OR FEELING A RAPID DESCENT PRESS, UPON LANDING FA COMPLAINED EARS WERE POPPING IN FLIGHT. EMERGENCY DECLARED. REPLACED CABIN PRESSURE CONTROLLER AUTO 1 ALL OPS CHECKS SATIS REF 21-31-00. REPLACED AUTO CONTROLLER 2 REF AMM21-31-02-004-001 PG401 NO DEFECTS NOTED. BOTH RECIRC FILTERS REMOVED AND REPLACED PER AMM 21-25-02. REPLACED OZONE CONVERTER LEFT REF AMM 21-51-22. REPLACED OZONE CONVERTER RT REF AMM 21-51-22 ALL SATIS.