I have been thinking of shaving my head for a while now sure in the past i have buzzed my head at various lengths.
but now the urge to go bald is very strong should what would it look like if i go from a bit of hair to bald right away
Go for it, and you will find out ;-)
Go for it buddy

Your hair will grow back in a week or two so you have nothing to lose.
You don't know 'til you try. That's the simple truth.
Go for it. Like BaldBradley said, it'll grow back if you don't like it. If you do go for it, just remember to not put too much pressure on whatever razor your use.
The urge won't go away. Go for it - the sooner the better.
Just do it man, and hair grows back so if you dont like it it'll be just a matter of time before its back to normal.