So in in the beginning of July, I went to China and when I came back 3 weeks later, I had a cough. During the first week of August, I went to a camp and I lost my voice due to excessive use. When I recovered, I noticed I had mucus and started having a runny and stuffy nose. So right now, weeks later I'm still coughing a lot and I constantly have mucus in my throat. I still have a runny and stuffy nose. And also, whenever I eat something that is warm or hot and I breathe in, hot air comes into my throat and I get this weird feeling in my throat and I have to cough. Does anyone know what's wrong?