Sore throat, Heavy Chest, Cough, & Headache?

I have been having a sore throat and stuffed up nose for 3 days now. Yesterday I started getting headaches and a dry cough. Today my chest began to feel very heavy and I can't take in a full breath. Also, my headaches have gotten much worse, as well as my cough. Does anyone know what this could be, or could be... show more I have been having a sore throat and stuffed up nose for 3 days now. Yesterday I started getting headaches and a dry cough. Today my chest began to feel very heavy and I can't take in a full breath. Also, my headaches have gotten much worse, as well as my cough. Does anyone know what this could be, or could be developing into?
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