Green Tree frog obese or bloated?

[Technothegecko]

Hey there!, i'm new to owning tree frogs(more of a gecko person as you can tell by the user name) but i've had this American green tree frog named pepe for about 2 years now(I got him when he was 6 months old) pepe has recently gained some weight and i'm really nervous that he is bloated and may have edema or something i'll post some pictures below! let me know what you guys think!

http://imgur.com/5IrlRf7
http://imgur.com/B2KsRWR
http://imgur.com/w4iNy0m
http://imgur.com/ie8B2Eh
http://imgur.com/pITOXxI

PS: that is not his permanent tank I just took pictures of him while I was cleaning his tank!

Also while I was uploading the pictures he secreted this mucus?? this is hard to explain but he kind of bunched up closed his eyes, opened his mouth and started rubbing it out with his hand? I tried googling what it was but I couldn't find anything. I feed him 1-2 mealworms and crickets evry couple days dusted in calcium and multivitamin. Any input is appreciated