Really sorry to hear your story.

I spend 2.5 years diagnosed with acid reflux due to waking up with a horrible taste in my mouth. It was awful, I’d wake up at 3am every night and could rarely get back to sleep.

After years of tests - they all came up blank. I was then referred to an ENT doctor. Diagnosed a nasal drip issue (mucus dripping down my throat) causing the horrible taste and I was virtually cured in 2 weeks.