What about swollen glands? Specifically the ones located under your chin (submandibular glands)?
Every night they swell up and its got worse every night. Tonight I've taken a paracetamol.
I take my Pregabalin in two doses so I can't see why it would only happen after the night time dose.

Thanks for your replies regarding dry mouth, it reassured me and it seems to be a bit better now.