Some people are allergic to cats dead skin or fur or saliva for some people and even it urine can make someone have an allergic reaction.
Hope this helps.
To find the TDEE you need to know the age and height of the person.
If Alex is an 18 year old woman who is 5'2 and 125 pounds her bmr would be 1,300 her TDEE on light exersice would be 2,016.
The five stages are, denial, anger, bargaining, depression and acceptance.
Have a great day! (: