Within six weeks of beginning Advair I was diagnosed with a yeast...

Within six weeks of beginning Advair I was diagnosed with a yeast infection in my mouth and throat. My headaches are severe and cannot be controlled with drugs that formerly worked. An ENT I consulted said that symptoms for which Advair is prescribed are more often caused by severe indigestion, even when one doesn't feel the effects of indigestion. I have read this elsewhere. Does anyone else know anything about this? How about any tension side effects? I don't think I've unclenched my jaws for the last month. Is this drug really a good idea?