HELP! i dont want my baby goose to die...?

i bought a male and female goose about 2 weeks ago and yesterday my male was mysteriously dead. today my female is acting very weak and i do not want to lose her. what can i do to help. she lives inside because its about 100 degrees outside and she is just a baby. she is fed and watered correctly so i know its not anything to do with that...PLEASE HELP