[SKB_Hamsters]

It’s hard to say without seeing her - could you share a photo.

Depending on where you live and how hot your house is. I’ve had hamsters get their bellies wet to help cool their body temperature.

If you say it her belly that wet then that rules out scent gland as they are on their hips as they do like them and get them looking all wet to spread their scent around.

Drinking more as they age is normal it often due to their kidney function. I would carefully monitor the amount she drinking daily as hamsters typical drink 10ml per 100g of body weight.