What Causes Itchy Throat, Runny And Stuffy Nose, Cough And Breathing Difficulty?

Hi, i have these Symptoms, i want someone to diagnose it. today I get a Sore/itchy Throat, tommorow i get a runny nose, also stuffy nose. it last for a week then i get cough, my body weakens every time i cough..all in all i have Itchy Throat, RUnny nose, Stuffy Nose, Cough.. its very hard to breath..... its like im being chocked.