Why does my entire body hurt and struggle to move? This is paired with my struggling to breathe after walking for any amount of time, copious amounts of mucus in my throat (but hardly any in my sinuses or nose), and a horrible cough that not even cough syrup can fix. Not sure how important it is to add, but I am having trouble thinking straight. This hit me like a truck 2-3 days ago and has only gotten worse.