Nine days ago, out of nowhere, I got a pain in my foot that seemed to shoot up an inch from the right side of my left foot INTO the foot, by about an inch and a half -- excruciating, electrical burning type pain that went away after 15 seconds and scared the hell out of me. It felt neurological, not mechanical.
For the next 9 days, I wore shoes with insoles even when around the house. No pain. Yesterday, after a day of wearing slippers all day, I had for a HINT of that pain, like maybe 35 percent strength of the screaming pain. I lifted my left foot off the ground, it went away, put it back down, it came again, lifted it up and it went away and stayed away. But again it did not feel mechanical.
Just now, lying down, on three occasions over the course of five minutes the pain came back for ONE SECOND. VERY painful, but for only ONE SECOND. No swelling, no nothing. Not worse in the morning. Not better in the morning. Basically, there's nothing going on until there's something going on. But though we're only talking about three seconds of discomfort over the course of a day (in which I was active in a normal, took a long walk but nothing fancy; normally I run about two miles five days a week), those three seconds are so painful that they make me feel fragile for the rest of the night, because I never know when it'll strike.
I've read about plantar's faciitis, and this doesn't sound like it. I should also say that I'm mentioning details like insoles and slippers, not knowing if they're relevant, but assuming that they COULD be.
This has me freaked out. It just feels wrong. By the way, I'm male and 51 years old, in good health so far as one could know, no illnesses, no history of serious illness.