The pychic link between twins

Does anyone know any twins and have you ever noticed this between them?

Like most folks we all sense a closeness between twins.    Not only the likeness between them but the differences between them sometimes.    
Physical differences I mean.     Like one may be left handed and one may be right handed.     

The only suggestion about them being psychic is the 'knowing' between them.
When one twin takes ill during separation between them,the other twin will 'know'.
Or sense,but is that 'sense' psychic?

I heard identical twins are actually mirror images of each other, I also heard and have read cases of twins knowing when the other has gione into labour or had an accident and also when one has died.

Identical twins are from the same cells the one egg, non identical is when two seperate eggs are fertilised

That's right,Violet but what about twins that are joined bodily?
I remember watching a program on telly a while ago and reading about special twins.   

One body,two heads.  They lived an ordinary life.
Physically they worked as one body but the brains of the two heads worked separately....
They showed a scene where the body was driving a car.   Two heads were having a conversation......I think I remember they were discussing the route they had to take.....
Fascinating........
Now there's a point!    One soul for both people or two souls occupying the overall?

I am a twin, although we are not identical. We do have a certain closeness, although wouldn't say we had a psychic connection. We do have those strange moments where we will sing the same song, or say the same thing at the same time.

Identical twins are born from the same egg,I think.   There are other kinds of twins but don't know an awful lot about them.  Simese twins (forgive the spelling) and what about twins which are fertilised from two different eggs?

and what about twins which are fertilised from two different eggs?

These are non identical twins and are not always the same sex this is how we get boy/girl twins, they can be a small difference in age too.

Thanks Violet....wasn't sure about them....