I think your doc is right, I often lose my voice and find swallowing painful. its the muscles again I,m afraid..Let the ENT doc advise as I am waiting for the same, my eyes dry up, my nose has no secretion or lubrication and cracks into sores, my ears have no wax and itch deep inside and my tongue soaks up fluid like blotting paper. I,m longing to know if its mucus membranes not working! will let you know but it could be months before I,m seen.

my voice will sound diff. at times like hoarse. Not sure if caused from dry mouth or my allergies. I'm allergic to tons of crap et doing immunotherapy now. Hoping it will help but will take 3-5 yrs for me. esp. since I am highly allergic to 7 grasses et birch trees. When got skin test nurse couldn't believe the size of my welts for those two:( Cough up a lot of mucous too. Then get dx with GERD et I said "ya, I'm sure they saw red et irritation when I'm coughing up thick mucous 24/7:( Dumb...I don't ever get heartburn although I know there's a silent type just think it's my allergies. Maybe wanna get tested for that since you're going see ENT. Good luck hope they find something out for you.

I get this a hell of a lot and suffer from weeks of a bad throat. I would be interested if their was a link. I use to sing which caused me problems more but don't often sing now and still suffer.

My voice often goes hoarse or nearly disappears with weather changes.
No infections though

I Always get Hoarse and then my voice goes when I get Fatigued. If I Overdo something,It's like my voice even gets exhausted! Thyroid can be a Fibro issue, never hurts to check things out. My throat is always scratchy or sore. I'm on Trazadone for Insomnia and Depression, it Really dries out my mouth and throat too! My Rheumy said "You are perfectly describing the symptoms of Fibro" when I asked him about losing my voice and my scratchy throat. Hope this helps a little!