Sudden Hearing Loss More Condition_symptoms Why Do I Have Sudden Hearing Loss?

Why do I have Sudden hearing loss? - sudden hearing loss more condition_symptoms

I had a cold for several days, coughing, nose / blocked flow and felt my ears. Two hours earlier, he began to hear sounds more and more in my right ear, 45 minutes later, I lost all hearing in her right ear. What it is and what it means?
BTW, I'm 14 and I am a man