lumps in stomach

I was just giving my beardie a bath until I noticed this huge lump under her right arm, I’m pretty sure it wasn’t there when I started to bath her. What could this be, and should I worry?

Hello all, My beardie Rico is female and around 2 years old. We rescued her from a young boy who couldn’t care for her anymore and he didn’t know her age or sex. Rico has always been a relatively good eater but one day she suddenly stopped. We have resorted to force feeding her through a...