Big bum

[Younr017]

Chubchubs bum area is now noticeable bigger then most other hybrids I've seen she's also got slight less energy ? What's up with my baby ? Is she just fat and the heat getting her down ?

[kyrilliondaemon]

Make sure she's cool enough. Is she drinking more than usual? Lethargy can be a sign of problems or it may be the weather but yeah, keep an eye on it.

Some hamsters are naturally chubbier than others, our hybrid pairs each have one chubby ham and one skinny one. Its just the different genes giving them different shapes. Or is it just her bum is getting bigger? If its just the bum I'd check for lumps/swelling e.t.c just to make sure theres nothing that obviously needs to see a vet
Maybe do a full health check to be safe?

[StarlightSerenity]

Are you sure that she's a she?

[fluffymunchkins]

Star light could well be right, the heat will make male parts much more noticable.
When settling they can be a little quiet, but apart from that it can depend on the character. The heat will also have an effect on energy levels, you can use cooled ceramic mugs or plates to help x