Dizzy spells

Today I was cleaning the house with great energy and suddenly felt dizzy and faint. I got a snack and sat down and realised that it was nearly lunchtime and I had only had my normal breakfast. I was really busy in the house and must have needed a lot more food than I had accounted for. In fact I have been busy nearly all day and despite trying to make up for it with snacks, I am still feeling grumpy this evening due to low blood sugar. I will have to get myself a wholesome supper to make up for it!