hey dude.....
Simply tried to offer some reassurance that I also thought (from your initial post) that the breaker could indeed be the problem. Problems that prevent you from doing your job are frustrating.
So why the F'n attitude, I don't know....but whatever.
My second thought was....
Why is this veteran of electrical knowledge (or so you let on) asking on a sign forum how to diagnose an electrical problem?
Why did someone have to tell you that the breaker may be bad? Gotta tell ya smokey, any electrician would suspected a faulty breaker in the top 2 reasons for your problem. (rule of thumb...check the simplest things first).
FYI. A faulty breaker is not uncommon.......new or 8 years old.
PS. Don't worry about my meds dude. I never pretend to be something I'm not. Evidently your NOT taking your meds.