That bulge is a real concern- potentially she either has a tumor, another type of obstruction (constipation, or ingested substrate that's not digestible, or else something going wrong with her reproductive system, like egg-binding etc.-FYI note- snakes can produce eggs without ever breeding, trust me, even if they're not fertile- & then, if she had no privacy or place to lay them, she could be egg-bound), or even possibly crypto. And I really hope it's none of these.Keep us posted, thanks.