2 month old baby unknown passing

[Pat]

Rescued a 33 gram baby. Was doing very well for 2 months. Ate breakfast, pooped, and seemed fine. 3 hours later he passed in his cage. He had been to vet, was dewormed 1 month ago. Any possible reasons would be appreciated. Thanks!

[Charley Chuckles]

I don't have any ideas I just wanted to say how sorry I am 😥

[stepnstone]

Unfortunately for captives/ kept squirrels, some of these unexplained "sudden passing's" can be related to an improper diet for a squirrel's nutritional requirements. It can be a delicate balance.
If you can tell us what his daily diet was and all that he was fed we can possibly help you to better understand or even to rule that out.