Strange Orange Bubble at back of Guppy

Do you have a pic? When I fed my goldfish too many peas they looked swolen. Fish dont have stomachs. Maybe there is a blockage in the intestines. Is she going to the bathroom at all? Did it just appear after you feed her? Next time when you over feed net some out and/or gravel vac. If it just appeared after being feed I would wait a few hours. If shes just got a blockage it should pass in those few hours.
 
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