Speech Problems

When actually talking to people, the kind of reaction I see on people's faces was as though I didn't say anything or could not hear what I had just said. And for some strange reason, my speech vocabulary is very limited than that of written vocabulary by a lot.

You know, when I try to speak, I would easily run out of breath before I even complete a sentence, as though I am running. So, in order to avoid that, I would use up lesser energy so that I can catch my breath at a normal rate. Unfortunately, my voice would come out softer than I wanted it to be, resulting in people not getting what I'm trying to say. In other words, speaking at a sound level that most people would consider "normal", would mean using up a lot of my breath just to speak "normally".

Come to think of it, why is it when I hear my voice that has been recorded sound different than what I hear as I speak out of my mouth? Other people's voices (to me) sound the same in both situations.

Oh no, my eyes are starting to close by themselves and my body is having increasing difficulty of movement... Is that a sign that I'm sleepy? Why is it that when my body is sleepy, my mind is not? Even I don't have the answer to that...