Hi Cathy,

Dry mouth is frequently a post radiation problem. I woudn't think that you would be "catching up" now.

It (radiation) can exceed the survival thresholds for salivary glands. The dry mouth for me didn't become severe until towards the end of radiation, and it's stayed pretty much unchanged since finishing treatment.

It may be worthwhile having a checkup...excessive thirst can be a symptom of something else going on physically.
Wayne