Has anyone else had the experience of getting really low blood sugar when building up how long you are running?
I'm aware of the need to fuel when doing 'endurance' level stuff, but I'm coming to the end of a C25K programme and I'm on 2x15 minute runs with a 2 minute walk break so I should be managing what I'm doing now. I run at a sensible pace (11min/mile) with a group, who all seem to be fine even though some of them are definitely less fit than me.
When we're getting to the end, I'm often getting numbness in my face, tingly hands, and feeling really dizzy. I'm not overly out of breath, it's not a case of overexerting myself like that but tonight the world properly started spinning and I had to cut and walk earlier than I would have liked (managed the 15, was gonna do another 5 to get back but couldn't) to avoid fainting. We got back to the cars and luckily there were some fruit pastilles I could down to bring myself back up.
I'm a nurse and fairly confident it was a hypo, but I don't understand why; I'm not diabetic, and I had eaten a reasonable time before my run so shouldn't have been hitting the wall. It was a bit warm but not insanely hot. It was quite scary though. I've literally gone and bought some glucose tablets to have in my pocket because I don't know how to avoid it happening again and if I was on my own further away from base I could genuinely have ended up blacking out.