Advair HFA and bad breath

I was given Advair 500 to use twice a day for a month to see if it improved my lung function test. I typically do NOT follow through with my meds so I promised my allergist dr - i have been seeing for over 25 yrs - that I would use it religiously 2 tiems per day for a month. Well, beginning the first week I starting waking up with headaches and keeping them on and off all day. The second week, the headaches got worse. i was thinking maybe the humidity and storms with it being June. Third week, headaches still intensifying, but bad tatse in moth - bad breath- sore throat, ear ache, drainage, horrible loud sudden sneezing, and nausea. Fourth week, all above still but nausea is awful. I kept thinking i was pregnant. I was nauseated mornings, with frequent urination, nausea after eating, and nausea at night. I have been living with headaches, sore throat, nausea, and this horrible mouth feeling like cotton inside. Well, when it came time for my 1 month appt something came up and i had to cancel so i called to tell the nurse I stopped due to the above symptoms and during that week I had to begin using my albuterol because I was having chest tightness. I have not had a new lung function test to see if it improved, i seriously doubt it did. he know has me on Albuterol and Flovent every 4 hrs. Before this is had not used any inhalers for atleast 6 months. All this just to improve my lung function test. I ekpt thinking it was in my head, but by the 3rd week there were too many things going wrong with my body. Thank you to all of you who have given your side. It helps me to know I am not alone.