Nasal polyps diagnosis. Problem or not.

Sir/madam i have recurrent allergy of nose , nasal congestion,runny nose  ,sore  throat upper part around Uvula only , itchy eyes . For almost whole year , when i take even simple citrezine i feel better but once i leave i feel same . Mostly after drinking more water , taking ghee or butter , curd i feel same . Most of the time it also results in whooping cough . During my childhood i was facing nose bleeding and went to doctor who gave some current in my one nostril and bleeding stopped but he said you might have polyps and we have to remove it but he didn't take any x ray or ct scan just guessed it . Now i request to suggest me should I go for x ray to see if it is really polyps which is causing problem or not . Thanks