Hi, it's totally normal, I'm on day 9 and still feel lightheaded and bit off somedays but it's definitely worse the first few days. So, no worries at all, I think everyone experiences that with lipo. On the plus side there will be days where you're full of energy and on top of the world. Just go with it and remember why you're doing it. It is worth it, I've a long road to go but this is the only diet I can remotely stick too, it's hard but at least it's helping my ''food addiction'' by taking away the drug for awhile. It's like we're in withdrawl and if you accept this and go with it, you will succeed. Think of the happier, slimmer you when all this is over, it will totally be worth it. Good luck on your journey and try not to cheat because you have to go through ketosis all over again, and this could increase your lightheadedness too. We all have blips but try to curtail them, not worth it as you see. I don't want to sound condescending, I'm only on this for 9 days but I was on it before and one blip can lead to more blips and then you're off the diet. So, go ahead now again, get on track as Im sure you are and just go for it completely. IT WILL BE WORTH IT.