Answer:
Lack of friends can be a result of reading signals incorrectly. Many people think other people don't like them, so they don't like them in return and thus it goes on and on and before you know it, you hate that person, before you've even spoken to them. ... Friendship favours the brave.
Asphyxiation because it is a condition caused by lack of oxygen, which causes one to choke.
The process of identifying or determining the cause of an illness is diagnosis
