Thanks for your thought-provoking answer, I appreciate your insight, you're actually spot-on with your assessment of the situation. I am being over sensitive to things and oddly one of the most pronounced is the perceived 'threats' dogs everywhere I go, seem to send my way. You of course don't know my story but, the short version of it is; in the Summer of 2018 I suffered a severe dehydration episode and coma (and after pumping over 30 liters of water into my veins to revive me, with no response whatsoever for more than a week, the ER staff were surprised that I'd survived), and in that I also had a Near Death Experience that has changed me and my perception of (and sensitivity) to everything to do with life and death. I'm apparently still suffering from Post Traumatic Stress Disorder, and that maybe a contributing factor in my over-sensitivity to dogs barking at me.
Regarding your guess that I'm likely more sensitive to external stimuli than the average person, you're again spot-on ! After regaining consciousness (post coma) I saw a Neurologist who gave me a battery of tests (MRI's, CT scans, you name it) and when she went over the results, the most interesting was (she said) that in her 20+ years of giving these tests she hadn't seen a test that had so "lit-up the screen" (from all the brain activity) as mine had, and on getting me ready to release from her care she knelt down beside me with tears in her eyes (so concerned about me) and proceeded to warn me about the difficulties I was likely going to face ... and part of that in essence is the 'sensory overload' or 'hyper sensitivity' to everything that I'm now dealing (with all senses).
The hard part is, I desperately need the peace that spending time in my yard or on my deck or working in my garage, or walking on one of the paths around here would give me, but everytime I go somewhere (in my own yard, or elsewhere) there's a dog barking at me, chasing me or biting me (long story...). So yeah I get that I'm being oversensitive but there's also a lot of lousy dog-owners out there that apparently have never heard of a 'dog-trainer'.