Update:
Well, a few days later I noticed the spot again. White raised sore/lesion/I don't know what on the side of his tongue.
After spending $25 on an Uber to get him to the vet, I get there and they don't have any power. There was a bad storm in Montreal and trees were broken in half all over the place. They couldn't call ahead to say not to go b/c no power = no computer!
Anyway they tried to examine him in the front of the room with flashlights but obviously that didn't work so well. So after Jasper is in the dark being toweled and lights all over him it's determined he has to go back on the weekend for a proper look.
The vet wants to sedate him so she can get a better look at his tongue. She says it could be a fungal infection, something stuck in his tongue or a mass of some-sort.
I've been checking his mouth twice a day and this morning it didn't look as bad. I'd be kind of surprised if it was an infection b/c he's had yeast infections before after being on antibiotics and it doesn't look the same. I'm hoping it's just a sore from a toy or something and it will clear up on its own. He doesn't play with it and if I didn't grab a glance of it I never would have known anything was there.
His behaviour/eating/etc is 100% normal. His appointment is Saturday.
I really hope it's gone....don't like the idea of him being sedated and having someone dig around his mouth
