Advair HFA and good bacteria

I'm 35 and I've have had mild asthma since I was about 10 year old. At times I've been able to go weeks without needing to take anything, then stress, envirnoment triggers etc fire it up. I started taking advair 100/50 a couple of years back, and right now my breathing feels just about the worst it ever has. Without the advair I feel an uncomfortable tightness that I've never had before, a whole lot worse that the wheezing. Over the past couple of years I've lacked energy, been a lot more anxious and I've been warned of potential heart issues. I have a very healthy lifestyle and I assumed I was just getting older and more fragile...after reading these posts I'm seeing a possible connection.
Like some other people have said I sometimes feel like something is stuck in my throat / top of my lungs, it almost feels like phlegm but I can't cough it up.
I've stopped the advair for 3 days as of today, so far the tightness is managable, and the rescue inhaler is at hand (although I haven't had to use it yet). I'm hoping I can get back to previous drug free times.