Advair HFA and diet

I started with a new allergist 3 years ago (other had retired). She said my asthma, moderate to severe, was out of control. Put me on allergy shots AND Advair Discus to begin with. I had too many problems with hoarseness, and being I'm a teacher, that interfered with my teaching! Then she put me on Advair HFA two years ago. It seemed to be better for awhile. Then I noticed hoarseness, dry mouth, and so I went down to 1/2 dose. I told her about it, and she got very angry that I would not follow her directions. She probably does not like me as a patient since I do speak up to her.
I decided to go off the HFA yesterday. Today I have no dry mouth, and my voice is normal, also no palpitations. I started Spring Forest Qigong which is a Chinese healing discipline, part of which there are certain breathing exercises and self healing techniques I can use, some directed toward asthma specifically. I will watch my diet more carefully for the worst trigger foods; I usually get a delayed sensitive reaction of some kind so I rotate those known foods. In addition red wine, I know, has a lot of histamines. I can get an immediate reaction from that, mostly palpitations.
I am thinking strongly of changing allergists or seeking a pulmonary specialist' opinion.

I just heard that Advair causes weight gain. Is this true?