Sounds like something I would think also. There is a part of me that feels I should be punished for my past mistakes. Subconsciously, I almost expect it so that when something comes back in my favor, my first reaction is to be suspect since it does not align with my faulty thinking.
Your test results are good. Give yourself the luxury of knowing that you are OK and that there is no penance for your drinking. We paid our penance many times over during our drinking days.