Hi Marco,
Don't worry too much about it. It is quite common for people to
feel anxiety even a few days before they are going to do or
experience something which they know or thought to be
pressurising.
Too much of such anxiety is indeed no good, but in our modern
society, this is quite unavoidable. Maybe you will like to read up
on and practise some good sleeping habits and see if they will help
you out.
Cheers.
True Heart, you seem to know a lot about taking care of
oneself....
Much more than me, in fact....
need your guidance in future....Shi Fu! (Master)