EMERGENCY - Pacman Frog closing eyes?

[HeatherK]

A few days ago, I found a mysterious blister on his upper lip (pic 1). I asked several breeders that I trusted, and they told me to keep calm for now, as long as he was acting normal.

All was well until I came home from work yesterday and one of his eyes were twitching (pic 2). I thought he had some substrate stuck in it & it was bothering him, so I flushed it out really well, and he opened it again (pic 3).

I got up in the middle of the night to check on him, and he had both of them closed (pic 4). He is showing very, very little movement now.

I am wondering whether to call the vet when they open this morning or let him pass in peace. Do you think this is the end, or is it worth stressing him out by placing him in a separate container for a vet trip?

My heart is broken, but I don't want him suffering... He just looks so pitiful.