I've had a whooping cough for a year now and it's getting worse. i can't eat oily and cold food or drink and when i cough too hard i vomit a lot.

Chronic cough: Chronic cough may persist after resolution of infection but more importantly maybe due to a number of causes quite different from the presumed infection. Patients with chronic cough will benefit from detailed evaluation to determine the cause and proper treatment if indicated. A consult with an internist will be a good start. Take care.