Suggest Remedy For Sore Throat, Fatigue And Recurring Fever

Hello! Right now I have been told I have bronchitis. I was told I had this in January (no tests have been done!) I went back to the doctor about 3 weeks ago and was told I had I a cold. Since then I have developed an awful cough, went back and was told its still bronchitis. According to the college campus doctor (who is often wrong) I have had bronchitis for a month and a half... going on two months. My cough is still not getting any better. It is very deep in my lungs and I wheeze when I cough. I feel like there is mucus in my lungs and sometimes cough it up.. but not often. I took a z-pack in January, and it did not help. They now have me taking Benzonatate 100mg, Doxycycl Hyc 100mg, MucinexD and an Advair inhaler. My symptoms are a sore throat only when I wake up, I am constantly tired and run a fever every once in awhile for about 30min-an hour. I am also very sore. Any suggestions? My cough has not improved much and gags me everytime I cough. I am also having a really hard time breathing. Please help!