the missing word syndrome

it is quite common to see writer leaving a letter behind when writing. the typo mistake is either caused by typing to fast or maybe a mere human error, or maybe it is just that the writer is really confident that the word if supposed to be spelled in that manner when it is not.

the typo error is something that i can avoid easily thanks the spelling check function. the good side of the function is that i can save time rather from looking up for a word in the dictionary which would take alot longer than left clicking the particular word which is underlined in red to look for suggestion spellings of the word that i want to use in a particular sentence.

but the main problem that i currently having is that, often i would leave a whole word behind. i know that the only to avoid this problem is to scan through the article written. but funny, even scanning through a couple of time right after writing, it always ends up with a pat on the back for a job well done.

a few days later when i come back to the earlier posts, only then i would realize that when i thought i had written:
i took the chance to kiss the girl while driving
turned out to be
i took the chance to kiss the girl          driving.
and after a few more days, more words started disappearing 
i took the chance to       the girl          driving.
and worst, after a few weeks, it became something else
i took the girl out for a drive.

and some times i've a hunch that my articles actually evolves on its own. having their own mechanism of growth, DNA structure and characters. slowly without me knowing, they turn out to be another article when i came to read them back.

this is where the message that i am trying to convey is usually interpenetrated into something else.

any reasons why this happens?
1- my brains might be overloading data to the hands, most probably like the common internet connection. the same answer that the customer service from the local internet provider would answer "your modem is slightly outdated to cope up with the amount of speed and data that is being transmitted through high frequency cable from our server to your house "
2- my brains and my hands may have two distinctive minds and personality. one would suggest what to say, but the other would over rule the first by typing out what it feels like typing.

a friend of mine also complains bout having the same problem. but i think his is much worst.
"the paragraph goes missing, i cant understand why, i thought i spent the last 45 minutes writing something and when its published- empty. wouldnt that be good if that were to happen to all the foods that ive eaten?"