HELP Frog looks bloated

[CA COQUI]

Kairu, my frog, has some new black spots on him and his right side looks a little swollen. When he moves the bump seems to flatten out so I put him in a clear tupperware to view his underbelly. As you can see he has a dark spot. He was submerged in his water bowl but came out to eat (?) so I was hoping this is normal and its just some eco earth mixed in with food that will soon pass. Just in case I put some pedialyte mix in his water bowl and put him in a 12w"8"tx6"d enclosure.

Also, the little black spots just below his eyes are new?

Any info would be greatly appreciated.

thank you