@Neil-McElroy My range is given as 72-85ms. I guess on average I get a 80,81 but obviously with some variation. Recently, after having couple of drinks, I got a 53ms in that night.
Couple of days before, I was feeling like I was about to get sick. When I checked HRV for the night before, I had 71ms. Arguably, it’s not that much below the minimum of the range but as I scored usually 80s I thought it matches the bad feeling I had on that day (might be confirmation bias).