I've had problems with my voice for over a year now. For a long time I thought of it as a mucus problem, possibly related to allergies. However, recently I've had many reasons to think it may be something else.
About 80% of the time I have some problem or other with my voice. It feels like my vocal chords are covered in thick mucus and I can't talk properly. I often experience some temporary relief from drinking tea, coffee, or alcohol, and being in an environment where I'm talking a lot. Often in these circumstances I'm also coughing and hacking constantly, but in-between that I can speak properly. My mornings are varied, sometimes I wake up with full control of my voice, and then within 30 minutes I feel muted again. Or sometimes I wake up feeling dry and unable to talk properly. I almost always wake up with a metallic taste in my mouth.
Infrequently I experience pain at the back of my throat, and the sensation that there's a lump in my throat or that something is stuck there.
The other day I woke up and actually felt a stomach acid-like burp coming up to my throat. It's from that point that I found out about LPR from my own research. I went to the doctor that day rather hoping that they'd recognise these symptoms as LPR, however she sent me away to have blood and urine tests and clearly has something else in mind.
I would say my number one symptom is that I feel like my voice box is suppressed. I would describe it as having cotton wool wrapped around guitar strings. As I said, I can clear it temporarily throughout the day, but it always comes back swiftly - which I suppose indicates either an infection or damage from another source.
As far as I can tell, throughout the day I never experience LPR events. So if it is caused by that, then it must happen when I'm lying down and sleeping.