When I was very ill in the early 1990s with sudden drops of blood sugar pre-menstrually, NAPS advised me to eat every 3 hours, 24/7. That is: a high complex carbohydrate diet. Not to increase the amount that I was eating but to spread out my meals more often.
I still carry: bananas, dried fruits and nuts, dry biscuits, ginger biscuits, energy bars as well as
Dextrose tablets, advised by professional walkers and cyclists in recent years. Fruit cake is also handy when walking for hours. Keep hydrated. I try to eat B4 my body is likely to be hungry .......
NAPS advised me to eat every 3 hours and it really did work for me then and helps stop that dreadful sick lurch I suffer. At the time I had a puppy who soon learned that there were biscuits by the bed when she came back in the early hours: she couldn't go through the night without needed a pee

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I also have a nerve in the back of my neck which if I move in a certain way makes me go 'oh!' but I can't reproduce it.