I have been sick for 7 weeks now. First was a bad cough and diagnosed with upper respiratory infection. Was put on an antibiotic and cough med. Went back to doctor and was diagnosed with acute sinus infection. Just finished another antibiotic and prednisone along with nose spray. All of my symptoms have included a deep cough, terrible sinus pressure, vomiting, nausea, feeling off balance, jaw pain, ear pain. Last night I was experiencing chest pain as well.