It could be some sort of spinal irritation/bacterial infection/virus, Lyme, pinched/trapped nerve, Chiari, Syringomyela, Transverse Myelitis . . . or many other conditions. Since it is only ONE symptom though, it doesn't sound like anything too serious is going on.

It wouldn't be L'hirmettes, because it isn't related to moving her head forward, and it is happening constantly. If this is the only symptom (and unless that changes!!), it doesn't sound like a MS-spine related problem either. (Spinal lesions/conditions aren't this "kind" . . . at least not for longer then a few days before all HE11 usually breaks loose)

I have had the electrical shocks from MS, and they are normally triggered by movement, like walking. When that occurs, they shoot up from the heal up the back of the calve. (I've had them without walking too, but they don't last for long ~ like a minute, once in a blue moon ~ when that happens.) Either way, there are plenty more symptoms that come on at the same time when it is MS-related.

I appreciate your concern for your daughter, but you know the drill already. Even if it is MS, they they would need to find lesions, and she would need to experience two "attacks". If this is related to MS, THIS lesion would be located in her spine which are notoriously hard to spot on a MRI, unless they are very large.

If I were you (and I have reason to be concerned about my daughter as well, so I understand your fear), I would not be jumping to conclusions about this being MS, based on this one symptom and nothing else apparent. It is more likely a pinched nerve or something, so you might want to try massaging her spine and/or leg to see if she notices anything else.

If not, and if it doesn't let up, then take her to her GP as they might like to do an Xray or perhaps even Evoked Potentials (I think that's what it is they might do . . . ).

Cherie