To make matters worse, there's actually two kinds of private message, the regular kind and then the ones left on one's profile page. I always miss those, as I rarely visit my profile page. The regular kind shows up rather prominently on my phone so those are hard to miss, but the profile page messages have gotten me more than once. I went there once and found a message that was almost two years old. Doh!!
I just write it off as old age creepin' up on me, givin' me a little preview of what's ahead. So don't worry too much about it, Jerry, stuff happens, and for those that get bent out of shape about the little stuff, well, what's that they say about those that can't take a joke? Bwahahaha