Hi hereiam,
Everything you said is exactly what I have felt for years also. It was my normal and I thrived in it. I lived and breathed stress, working 33 years in extremely high stress environments. I worried about everything and lived on the absolute edge. Its almost an addiction.

It becomes a problem when it starts to effect your everyday life. More irritable, lack of memory and concentration, insomnia, fatigue, etc...

It came to a head for me when I almost started to have panic attack type episodes over my constant worry. It just came to the point that I needed some help. I've always thought myself to be very much in control, and seeking out help was the last thing I thought I'd do.

My Dr has told me to back off a few notches or I'd end up with some very serious health conditions. I am now in the process of semi-retiring and choosing a less stressful lifestyle. The meds have taken the edge off. Instead of worrying about something for hours/days etc... I'm now more able to forget about things a bit better. I still have a long ways to go because I've been at this worry game for 47 years !!

Anyway....hope this helps. If your constant worry is affecting your health and happiness and has been for several months/years....it might be time to seek out some help.

Good luck !!!