Anorexia nervosa
Lyssophobia is the name of the phobia related to the fear of becoming mad
Anorexia
being old ad fat
A phobia of small spaces is called claustrophobia.
Ntomataphobia
From what I understand there is no specific phobia for people who are afraid of mail. Most just call it Mail Phobia...
Obesophobia or Pocrescophobia.
laceaphobia
Triskadekophobia.
Gynophobia :D
I am not sure of the name but yes, people can have a phobia of anything, for example, my friend is scared of tomato ketchup.
Yes there is. It's called stupidity.