Hi sis, sudden severe headaches with dizziness or hearing changes can be serious, please see a doctor or go to the nearest clinic/hospital today to get checked properly, okay? Hindi kami dapat mag-assume dito because there could be different reasons, at kailangan ng professional. A few of us moms have experienced sudden migraines before, pero pag may kasama pang ganyan na symptoms, mas safe talaga mag-consult. Praying it's nothing serious, but better to be sure. Take care!