I have 99.0 i go from hot to cold sweating to freezin and im like really tired have a headace and i stuffy nose and i'm coughing, hard to breath?

Viral illness but...: You have a viral infection; it might be influenza though usually one has a much higher fever with the flu. The only symptom that sounds serious is difficulty breathing. This is probably viral bronchitis but you may have asthmatic bronchitis or a secondary pneumonia so please see a Dr. today to evaluate. For the viral infection: rest, fluids and Umcka, an herbal medicine proven to help bronchitis.