Hi! First off, I hope nothing is wrong. It looks like it could be Red Leg, but I can't be sure. I haven't kept Red Eyes but I'm pretty sure their underbellies are usually white. Other symptoms of red leg are quick weight loss and sluggish behaviour. If it persists, and those symsymptoms occur, Red Leg is a good possibility. An exotic animal/reptile vet may be the best option. If self treatment is the only option, Red Leg is a bacterial infection, and can be treated with antibiotics for frogs(Antibiotics for fish are sometimes substituted to varying degrees of success.)