Went out last night to see The Meaning of Life at the Barbican, followed by a Q&A with Terry Jones. Afterwards I had two pints with my mate, with whom I had gone to see it. When I got home I ate, but overnight my BS went higher than expected, so I started the day at 12. Having Lantussed last night, I decided to correct, and normally, at 12, 2u is enough to drop me to about 6-7. But not this morning. I don't know whether it was a combination of the two beers and the low carbing, but I got off the train at Cannon Street and could tell I was low. so I ate some Dextrosols. 2 minutes later, half way along St Swithins Lane, outside the Rothschild building I could feel the very low lack of control kicking in. I ate more dextrosols. And then the low sugar twitch and control loss kicked in and I ended up sitting on the floor with my legs and hands twitching uncontrollably, with a number of concerned people about me. This lasted five minutes, and then the glucose kicked in and I came back. On testing, my BS was showing 1.2, so I've no idea how low it went in that period, but I'd suggest that it was sub-1. Two things come out of this. One, my correction dose this morning had a significantly accelerated effect. Two, my level at which my brain shuts down while low carbing is much lower than it is when not (my brain is clearly able to run partially on ketones now). <1.2 versus about 1.8. So while it was a scary incident, no ambulances were called and I was able to recognise what was happening. I'm also finding that the fatty acid metabolism is somewhat different (and perhaps safer) than the NHS recommended approach with regard to how low Hypos are now. I think this deserves a topic of its own. I think the only down side is that when I collapsed, I seem to have managed to twist my foot awkwardly, and now it's rather sore. Glad it wasn't wet!