Yes, I noticed going through periods of time like this... I was in my late 30's and had another season in my late 40's of what I call the "Twilight Zone - Disassociation" it would be very close to an out of body experience coupled with uneasiness of constant anxiety (low level anxiety, not Panic Attack level, but it was very draining... )
I have been told my doctors and psychiatrists - that these would be considered to be part of a man's "mid-life crises"...
Hummm... yeah!! Ok..
So, should I divorce my wife, have an affair, buy a red sports car, quit my job and and join a biker gang??
If I had to guess in retrospect now that I am in my 50's - I would say that I was experiencing low levels of dopamine in the brain. So I would wonder if any natural supplement that would increase Dopamine in the brain would help shorten this feeling??
Good Luck - Hope you feel better !