My nervous system’s persistent alarm state during night leads to chronic stress, fragmented sleep, and a diminished sense of security, making night time a constant challenge rather than a period of restoration.
Welcome here, sorry for your condition, deep anxiety may lead to health problems in the long run.
As said, try to relax and reduce the environment level of affection of your mind as constant news, informations about problems, etc may out the mind in alarm mode and you connect to the general mass-mind vortex of energy, that is quite alarmed and worried - depending where you live.
Anyway, what you describe is a strong red flat for emotional trauma you may have suffered in childhood or previous life.
You perceive the mind in "alarm mode", most likely it is the same also during the day but you don't perceive it as it's unconscious.
Just in case, you have been beaten, insulted, deprived of freedom, abused or ridiculed for an extended period of time when you were a kid (most people did suffer that), this may lead the mind to be in persistent alarm mode.
Because, due to past abuse/violence - if any - the mind is trained that danger is arounf every corner and no safe place and moment exist. Because often those kinf of traumas come from known and trusted people or caregivers. So, the mind learns there is nothing, noone and nowhere to be trusted.
If you want to find the root cause of this and work on it, I would ask your GD to show you what triggered your anxious state of mind.
Then, you may be able to work on this and heal the problem at the root.
As usual, I am silent unless I talk about my direct experience, and I have personal experience in that. With myself, and also others.
In closing, I am strongly convinced you suffered deep traumas. I then express my feeling of sadness and support to you, for this event.
Should your ever find this is the case, and you want to vent out, and talk - do this freely on here.
It is important to be listened and understood by another human being, so important. You will be listened.