M: Looking for a term to describe something. It refers to the idea that a lot of the aches I have in my body are less the result of aging, or at least not exclusively described by aging, as they are related to the various things I've done over my life. Like I sprained an ankle when I was 13, and then, you know, oh Jesus, I just realized. I re-sprained it when I was around 27, playing football in the middle of snow to the point that it swelled up, and then five years later landed on it badly playing football, spraining it once again. So, it's one of the major... here's something I don't know how to describe either, but it's the idea that without actually being a problem at any given point, no matter how good I feel, there is going to be one point that is just a little bit more sore than the others, and the ankle is a prime candidate for this. But anyway, the main question involved a term for that kind of non-age-based, but rather experience-based ache. That experience could have come when I was 10, or you know, just three years ago, but it's kind of a self-induced structural weak point. What I'm looking for is a term besides the one that currently resides in my head that I really can't use in public, because what I think of it as right now is self-abuse, which at the very least has public connotations that I'd rather not use it for. I'm looking for a term that isn't too overly clinical, that isn't too self-mocking, and that succinctly describes the situation. Just one to three words to distinguish between any kind of actual age-based aches, and what I'm talking about, which as a personal example is a chip that got taken out of my hip playing baseball in high school, and which has not gotten worse since then, but has been a constant presence ever since then.

G: TL;DR:
The cleanest, non-clinical term for what you’re describing is “legacy injury.”
Japanese inline (two allowed):
けいしょうけが（legacy injury） — an injury you carry forward.
こしょうポイント（weak point） — a spot prone to acting up.

Below are the best options that match your criteria: short, not clinical, not self-mocking, and socially usable.

1. “Legacy injury” ← strongest fit

Widely understandable.
Neutral, not medicalized, not self-blaming.
Conveys exactly what you mean: pain or fragility that comes from earlier events, not aging.
Works for your hip chip, the ankle from 13→27→32, anything with a long tail.

2. “Old damage” (casual, plain-spoken)

Feels honest, not dramatic.
Distinguishes it cleanly from age aches:
“This isn’t age—it’s just old damage.”

3. “Wear-history injury” (more reflective)

Emphasizes the idea that your body’s aches trace a biography of events.
A bit more poetic, but still plain.

4. “Residual injury”

Slightly more clinical, but still easy.
Emphasizes that it’s what’s left over from something that happened before.

5. “Chronic-but-stable injury”

Accurate, but the longest and most medical-sounding.
Probably not your preferred register.

Best phrasing for everyday use

If you want a one- or two-word option that people instantly grasp and that fits your tone:

Legacy injury

Old damage

Both separate the concept from aging, both avoid the connotations of “self-abuse,” and both capture the idea that these spots are structural weak points with a personal history.

If you want something even more compact and personal, you can combine them:

“My ankle is a legacy weak point.”
“That’s just old damage acting up.”

If you want, I can help you refine it into something stylistically unique to you.

G: “Legacy damage” works perfectly.
It’s clean, intuitive, and avoids the “ongoing wound” implication that injury carries for you.
It also sits right in the semantic sweet spot you described:

Legacy = from the past, carried forward
Damage = structural change, not an active injury
Two words
Non-clinical
No self-blame baked in

Japanese inline (grade-level simple, two max):
いぜんのそんしょう（legacy damage） — damage from before.
よわいところ（weak spot） — a place that acts up.

“Legacy damage” also scales nicely—you can apply it to the ankle, the chipped hip, the shoulder, whatever—without implying that anything is currently “wrong,” just that it’s part of your body’s history.

If you want variations with slightly different nuance, I can give you a handful (e.g., “historic damage,” “baseline damage,” “old-load damage”), but legacy damage is already the cleanest version.

G: Yeah, I get exactly why “self-abuse” fits the internal logic so well and yet is a complete non-starter socially.

Internally, it hits all the nuances:

You did it to yourself, but not on purpose
It accumulated over time
It’s vaguely humorous and self-aware
It distinguishes these aches from aging or pathology
It labels the history of overuse, impacts, sprains, and stupid youthful choices

But externally, it reads as something entirely different — the public connotation is permanently hijacked. You’d spend half your time clarifying meanings instead of communicating.

Legacy damage keeps all the useful meaning and none of the derailment.

Japanese inline (two max):
じぶんでつくったそんしょう（self-made damage） — damage you created through life.
からだのれきし（body history） — the history written into your body.

If you ever want a tongue-in-cheek private term and a clean public term, you now have both:

Private: self-abuse (internal shorthand, humorous)
Public: legacy damage (communicative, neutral)

The pairing actually works well together.