So: “pinched nerve” might be a lay and not medical term, but it does describe a real phenomenon, in my case, an impingement upon the sciatic nerve.

No, I didn’t get this diagnosis from a doctor—there’s not much she could do, so why bother—but it’s pretty clear from my symptoms that my occasional lower back troubles can cause what is literally a pain in my ass.

If I want a more exact diagnosis than “o.l.b.t.”, then, yes, I’d need to see a doctor and undergo a variety of expensive (e.g., MRI) tests, but as a more exact diagnosis would likely lead to no greater precision in treatment—rest, time—there’s seems little point in doing so.

I am gonna have to get more ibuprofen, though.

I.

While I haven’t enjoyed in any way the pain from my grumpy sciatic nerve, I did take interest in the (non-pain) side effects of the jumped-up nerve, namely, the random twitching up and down my lower right side.

At one point early on I watched the middle toe of my right foot flutter like a drunk hummingbird. It didn’t hurt at all, and if I concentrated, I could stop the movement; in any case, after 10 or maybe 20 minutes, it stopped.

Sometimes my glutes twitched, sometimes, the muscles in my calf. It’d start, then stop, seemingly at random.

I still get the occasional muscle-shudder, but as whatever is annoying the nerve is slowly retreating, so to is the twitching.

II.

One of the reasons I love teaching my bioethics course is that I get to talk about human biology, which is so astonishingly jerry-rigged that I can’t help crowing “biology is so cool!”

Most of us Homo sapiens sapiens have 46 chromosomes occupying the nuclei of our somatic cells, but some of us have 45 and some have 47, 48, or even 49 (that’d be one of the varieties of Klinefelter’s).

A woman with Turner syndrome is missing a second sex chromosome (45,XO), and while she’s infertile and may experience some developmental delays, she likely will have normal intelligence and may live out a normal life span. On the other hand, a child born with a deficiency in the short arm of the 5th chromosome will be born with Cri-du-chat syndrome, which affects both her physical and intellectual development, and may leave her unable to communicate.

So, missing an entire chromosome might have fewer effects than missing a portion of an arm of chromosome. A man who is 47,XYY is likely to experience no effects whatsoever, 47,XXY will have Klinefelter’s (and thus be infertile), and 21,XXX (Trisomy 21 or Down syndrome) will experience profound physical and intellectual effects.

Oh, and some women are 46,XY.

Now, one of the things that can be inferred from this little recitation of chromosomal abnormalities is that the genes on these chromosomes are tremendously important, such that the genes on the short arm of the 5th chromosome are involved in aspects of our development that genes on the sex chromosomes are not; similarly, the Y chromosome is so gene-poor (~350) that doubling up on the Y has no discernible effect.

Then again, the few genes—most importantly, the SRY gene—that do remain on the Y are clearly important: their dysfunction, after all, can result in an XY woman.

The second thing that can be inferred from all of this is that biology is messy—I haven’t even discussed mosaicism or chimerism, or situs inversus or any of the other kinds of weirdnesses within us—and that the messes themselves are messy: sometimes they matter a whole lot, and sometimes not at all.

III.

So the first day my sciatic nerve commenced its protest it hurt to stand, was uncomfortable to walk, and running felt fine.

The second and third day, it hurt so much in the morning that shortly after rising I would sit down, gasping, from the screaming in my leg; after moving around a bit, however, the pain receded.

A couple of days I limped. Some days it hurt to put pressure on my right leg, some days it hurt not to put pressure on it. If I positioned my foot this way I was fine, that way, not; later, the fines were reversed.

I can walk quickly, but for the past 4 or 5 days, can’t run. Going up and down stairs was initially problem-free; now I grasp the railing.

Slowly, slowly, I am getting better: while the troubles migrate, they also abate. I was hoping they’d be gone by now, but I expect by next week, they will be.

IV.

Aging sucks.

V.

I’d rather not have gone through this and will do my damnedest to forestall a recurrence, but it does make me wonder what is going on beneath my skin.

Yes, I pay attention to my body, but usually when something is wrong I can trace it back to its source: I ate too much, didn’t stretch after a workout, wiped out on an icy sidewalk;  thus having linked effect to cause, I lose interest.

)And with migraines, well, they’re just SO irritating that I become preoccupied with the pain itself; the rare occasions when I get auras I am less fascinated than, well, irritated. Knock it off, shimmering lights, you’re blocking my view.)

In this case, I’m pretty sure I know what set off the latest back pain, but how that migrated down into the sciatic nerve, and how that nerve proceeded to respond to this trespass hopscotched around predictability. Why is my toe shaking? Why is my calf muscle clenching and unclenching?

What the hell is going on?

Oh, I know: what’s happening is that my body is now more assertive in letting me know it is unhappy with my treatment of it, i.e., that I’m getting old.

It’s not that when younger I thought I was in charge of my body, but, yeah, I thought I was in charge of my body.

I’m not humbled, but bothered, to learn otherwise, and I will not be gracious in relinquishing control.

It will be a fight to the death.