I'm on the verge of turning 36yo. While I've really never had attacks of the "Introspective Blahs" common to my peers, I had an experience last week that suggested perhaps I've passed a few years 'round these parts.
Slightly more than a week ago I took my Nat'l Registry- Paramedic (NREMT-P) written exam (more on that later). While putting my riding gear in a provided locker, I felt a twinge in middle of my lower back; roughly L3-5 area. It wasn't anything that seemed to require my immediate attention so it was duly logged as something to worry about later.
However, the longer I sat through the exam, the more uncomfortable my back became until, at the end, I stood to leave. The pain was so immediate & serious that it took my breath away for a moment. I still managed to walk out, ride the motorcycle home, ascend a couple flights of stairs & get to bed.
The next day was even worse. I brushed my teeth by bracing my forearms on the sink.

If it hadn't been so painful I'd have laughed at the absurdity of it all.
At some point I happened to glance up & suddenly noticed, to my chagrin, that I could see the top of my scalp through my hair.
Hunched over the bathroom sink, trying to brush my teeth, my back killing me, my hair thinning to a disturbing degree, & my 36th birthday around the corner. I had a sudden feeling that my personal warranty had given out.
And yet, it's not all unhappiness & discontent. My back loosened up after a day or so & the general outlook seemed cheerier on a lot of things. My brother, may his tribe increase, suggested that I was merely becoming Real.
W/ that thought in mind, I offer the following, perhaps overused but nonetheless personally poignant, excerpt from 'The Velveteen Rabbit.'
The Skin Horse had lived longer in the nursery than any of the others. He was so old that his brown coat was bald in patches & showed the seams underneath, & most of the hairs in his tail had been pulled out to string bead necklaces. He was wise, for he had seen a long succession of mechanical toys arrive to boast & swagger, & by-&-by break their mainsprings & pass away, & he knew that they were only toys, & would never turn into anything else. For nursery magic is very strange & wonderful, & only those paythings that are old & wise & experienced like the Skin Horse understand all about it.
"What is REAL?" asked the Rabbit one day, when they were lying side by side near the nursery fender, before Nana came to tidy the room. "Does it mean having things that buzz inside you & a stick-out handle?"
"Real isn't how you are made," said the Skin Horse. "It's a thing that happens to you. When a child loves you for long, long time, not just play with but REALLY loves you, then you become Real."
"Does it hurt?" asked the Rabbit.
"Sometimes," said the Skin Horse, for he was always truthful. "When you are Real you don't mind being hurt."
"Does it happen all at once, like being wound up," he asked, "or bit by bit?"
"It doesn't happen all at once," said the Skin Horse. "You become. It takes a long time. That's why it doesn't often happen to people who break easily, or have sharp edges, or who have to be carefully kept. Generally by the time you are Real, most of you hair has been loved off, & your eyes drop out & you get loose in the joints, & very shabby. But these things don't matter at all, because once you are Real you can't be ugly, except to people who don't understand."
"I suppose you are Real?" asked the Rabbit. And then he wished he had not said it, for he thought the Skin Horse might be sensitive. But the Skin Horse only smiled.
"The Boy's Uncle made me Real," he said, "That was a great many years ago; but once you are Real you can't become unreal again. It lasts for always."
So there you have it ... I'm becoming a Real boy.
Talk at you again soon.