I had been taking Advair diskus for about a month & a half, during that time I was breathing better, however I expericed horsness, sore throat, headaches & dizziness. Then my acid reflux went crazy, causing chest pains... Has anyone else commented about acid reflux issues.

When I started taking Advair, I already had a history of heartburn/acid reflux type problems so my doctor put me on a drug for that right away so it wouldn't be a problem. I take Aciphex (that's the brand name) daily to prevent the acid reflux types of problems. I think it has made a big difference. Once, when I first started all of these drugs, I forgot to take the Aciphex and I could definately tell.
Also, are you making sure to rinse your throat well after you take the Advair? I have heard some people say that they rinse with water and then drink a whole glass after, but it has worked for me so far to just rinse. That could be the cause of your horseness and sore throat. Not sure about dizziness and headaches, though.
Hope you feel better!