This happens to me infrequently (maybe once every two years). Without any warning, I will get a very sharp pain when walking, located just below my ankle, on the outside of my foot, slightly forward of the ankle. The pain is pretty severe, and only occurs when I walk, making me limp. But, it will disappear just as suddenly, leaving no trace.
Any ideas?
Is there any history of gout in your family? Sometimes eating the wrong kind of food that produces an excessive amount of uric acid and can trigger ankle/foot/toe pain. It’s infrequent occurrence suggests it isn’t some kind of existing condition, so the question is what triggers it.
The next time you have an attack, note what you ate the previous two days and what you did in terms of physical activity.
Could be a bone spur irritating a tendon or other tissue.
I have no answer, but are you sure you don’t have a voodoo problem?
Well, it does feel like I’m being stabbed with a pin, so there’s that…
Is there any sense of muscle cramping, or is this just isolated sharp pain?
No, it’s not a muscle cramp (at least, I don’t think so). When I don’t put any pressure on my ankle, I feel no pain at all. Putting my weight on it, or especially flexing it (like walking) produces a sharp, stabbing pain. Almost like a nerve pinch (not Vulcan, though). There’s no warning, and when it stops (after a few hours, usually), there’s no lingering pain at all.
Maybe it is VooDoo…
Very small scorpion got in your shoe?
Just kidding; I got nuthin. That one’s a headscratcher. Doesn’t match any experience I’ve had or can remember hearing about.
Good luck getting a resolution. Seriously, not snarkily.
I once mentioned to someone at the gym that I had hurt my back. They asked if I was going to get it looked attend I said “no.” They asked what I would do if it didn’t get better, and I said - “I’ll just add it to the list of all the other aches and pains I have."
Getting old does have its issues. Ouch!
Sounds like a re-tearing tendon.
They heal then a misplaced step it retears. Add pain.
Not to be Debbie-downer, but eventually it won’t quit hurting.
I was a dancer, feet are my specialty.
I would tape it after an event. Then RICE.
(The kinetic tape works well)
Expect my bill in the mail 
Seriously, If it worsens see a doctor.
If the problem may be fixed. No pain is a good thing.
I don’t have an answer, but just last weekend I had a pain on the top of my foot that was like that. Came out of nowhere and I had to limp, within about 10 seconds it was gone again.
I have no idea what caused it.