When I wake up after several hours of rest, my voice is clear and bright lyrical tenor. Speaking and singing is easier. I do have bad singing technique, but I am addressing that with my vocal coach.
The problem is, during the day my voice gets worse and worse, it loses its clarity and drops down from somewhere around f to c. I have to use more air to make myself heard the same as in the morning, otherwise I sound breathy.
I do not speak much during the day. The same thing happens when I don't speak the whole day at all.
In the evening when I get to my vocal coach, it takes me half an hour to make my voice sound better (this interval is shrinking with more lessons though). After I sing for a while my voice is back to the morning self, maybe a little better. Ringing and in my proper range.
(note: I noticed this since the last time I was with the coach, haven't had time to discuss it with him yet. I am quite worried, so I seek info wherever)
Can I be straining my vocal chords somehow? I tried making my neck area relaxed during the whole day, it took quite a bit of effort, but couldn't see much improvement.