Type 1 Any theories on almost fainting episode?

Had an odd experience on public transport this morning. I caught the train around 7, feeling fine. After about 20 minutes I started feeling really sick all of a sudden, just before my stop I was convinced I would throw up before I could get off. I stumbled off, felt very dizzy and my vision went black for a second. I sat down and quickly came around.

That morning I had woken up with a bgl of around 16 (I generally don't experience any serious physical issues other than dry mouth, etc. when my bgls are this high), I corrected and just after this event, tested at 5.8 with 2.6 units of active insulin. I'm wondering if this (+ being diabetic - although this hasn't happened to me before) could have anything to do with this, or if anyone has any other theories that explain instances of nearly passing out/sickness like this?

EllieM said:

Normally I'd say that you had a hypo, though the 5.8 suggests possibly not. Two possibilities that I can think of
1) You did have a hypo which was corrected by a liver dump.
2) False hypo if you've been used to running high.

How long have you been diabetic? Do you get good hypo warnings?

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I've been a diabetic for 6 years - my hypo warnings are pretty good, and I have been running a bit high recently so that's a possibility. It was just odd as I've never experienced anything like that before.