Issues expressing yourself when typing?

Issues expressing yourself when typing? Bit of a strange one. I find that when I type and read back what I have put down there are often words missing. Sentances sometimes have repetitions in them. I am often surprised that what I am thinking about has not been properly expressed in typed form. I have assumed up to this point that this is caused by a lack of care and concentration. If I force myself to focus hard then I am fine. I made this thread to try to validate this assumption. It occured to me this morning that an alternative explaination is that my language center is generally a little jumbled and might contribute to my stutter. That sounds crazy though. Does anyone else experience what I describe above?