Is this a mental ilness?

Here is a nice list sent to me by an enquirer who had been diagnosed with "mental illness" but found the site by herself and is now wondering......

I have recently come to think that there is a strong possibility I may be a wombtwin survivor.
Here are a few of my reasons:

• My mum almost had a miscarriage 3-4 months into the pregnancy
• There is a history of twins on both sides of my family, but none in my generation
• I am left handed
• I always had imaginary friends as a child
• I think my twin was a brother - I always got on better with boys as a child and preferred their games and toys, although I never actually wanted to be a boy
• I have always been fascinated by and jealous of twins
• I am not at all competitive and would give in to anyone as winning makes me feel guilty
• There has always been something missing in my life - I have been searching for someone like me but never quite found them, I just feel "different" and alone.

That is an absolutely typical list. I wonder how many psychiatrists ask their clients questions about a possible twin pregnancy in the process of their client assessment? I wish they did. It would cost nothing and save a lot of trouble for people who end up being labeled as "mentally ill" when all they are doing is reacting normally to a rather unusual situation.