Why does my face feel fuzzy?

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It's like I've got pins and needles in my face, you know like when you sit on your feet!

It started last night and I put it down to eating a whole bar of dark chocolate in a very short time (unusual for me, not used to much chocolate or sugar) but it's still going on now.

I get this before a migraine attack, in which case it could be down to eating dark chocolate. Do you have any other symptoms? It normally only lasts a short amount of time - an hour or so in my case... Might be worth getting yourself checked out.

I have TN (trigeminal neuralgia) and although my pain is mostly controlled by my anti-epilepsy tablets, it commonly feels like my face has pins and needles.

I doubt this is your problem if you've not had any other symptoms so I'd second a sort of migaine symptom.