Hello and welcome to FF! Need to read the article Collen/Jerrod linked about Pacman care ASAP, and answer the questions on the second link: Trouble in Enclosure as completly as possible. Only then will we be able to correct any deficiencies before they become a health problem.

When you transfer a frog it should be placed in enclosure (preferably a quarantine set-up) and left alone and undisturbed for at least a couple days so it settles down. Showing to neighbors, feeding, handling, etc. will just add more stress to frog until it freaks out like your's did.

Any animal that eats in that condition is going to have digestions issues that could become problems later. There are important parameters in the enclosure that could affect your frogs health, among them: humidity, heat, substrate, food, and water. As soon as you provide answer to those questions we will be able to point out any issues and offer reccomendations. Thank you !