Is there a disorder for being emotionally insensitive or is this considered normal?

Asperger's syndrome. I've worked with such people. You couldn't beat emotion out of them.

I don't think it's normal.. it's cold.. but I wouldn't know what the proper scientific term for such lack of sentiments would be

Lots of 'em but it can also be normal considering the degree and factors

Narcissistic people are like this
As are sociopaths and psychopaths

sociopathy or autism

INTJs