so I've had a bad cough about for 3 weeks now coughing up green phlegm and generally not feeing great . I spoke to my doctor and was give 5 days of antibiotics that ended today . I have also sinus pain and other cold like symptoms also feels like bubling in my stomach or chest I'm not sure just getting worried now as it has been going on for just over 3 weeks anyone else had anything going on for this long .