I'm having a problem for a while now...
On workdays when I come home and take the trumpet I can't play very decent, all notes ask way more then what they should.
I really have to make an almost fysical effort to even hit a G on top of the staff. Me lips start to feel stiffer and stiffer when I go higher.
Then when I have the opportunity to play in the morning (on saterdays and sundays), everything is fine and a lot easier to hit.
I can hit high C (first one above the staff) without a lot of effort and hold it there.
The work I do isn't fysical at all and I always make sure to drink enough water to keep myself hydratated.
I also don't feel exhausted when I come home since a have a normal non-fysical 9 to 17 workday.
Anyone had something similar, or has a clue?