Wow. A 10-month-old is a bundle of joy, and a handful of work. No wonder you're tired. Do you have any help with him besides your husband? Family or friends around who are healthy and helpful?
Do you attend any Naranon/Alanon meetings? The in-person support for you can be a lifesaver.
Bless you. Your grandson and your daughter are lucky to have you. Praying you get some rest.