Fantail goldfish has swim bladder disease but wont eat?

He s been fasting for about 2 days already, so i tried to offer him peas to help with digestion. He wont eat them though. :( yesterday it seemed he was stuck at the bottom of the tank, and today hes stuck at the top and keeps flipping over. Everyone has been telling me peas work so i really want him to eat them,... show more He s been fasting for about 2 days already, so i tried to offer him peas to help with digestion. He wont eat them though. :( yesterday it seemed he was stuck at the bottom of the tank, and today hes stuck at the top and keeps flipping over. Everyone has been telling me peas work so i really want him to eat them, but he refuses.
What should i do??
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