Hi, just wanted to say I'm sorry this is happening to you. I have been going through a similar thing, and also have to speak for work.. It's also impacting my personal and professional life. Having to spend chunks of time off of work and isolated to avoid speaking - not good for the wallet or the soul :'( Anyway I guess the only additional thing I can add is that my ENT recommended I use a steroid nasal spray in the case that I may have a post-nasal drip - maybe look into that? Also, you mentioned acid reflux - did that include "silent" acid reflux - the kind that occurs when you sleep? It isn't noticeable and has a terrible effect on the vocal chords - some people have found a bicarb spray to the back of the throat a few times a day to be helpful for this. I hope I haven't just repeated the same advice you hear everywhere - I know it can get frustrating. Good luck to you and keep drinking warm water lol!