It seems strange. Have you eliminated other possible causes for the light-headedness? i.e. overall fatigue, your total calorie intake for the day, any unusual exercise today? I've never heard of skipping carbs for one meal making someone feel ill (except a friend who's hypoglycemic, but that certainly doesn't apply!), but then again, we're each unique.

Just thinking could your BP be off?

If your body is used to high BG readings and 151 is much lower for you then you will have hypo symptoms until your body gets use to lower numbers. Also, you could be going through "starchy carb" withdrawal. Trust me, it's real.

I am on a very low carb diet to control my BG. Dizzy for me means I'm not taking in enough salt. But that wasn't a concern until long after I went through the carb withdrawal and the lower-BG dizzies.

I'm new to glucose monitoring and am trying different things to get the numbers own. For dinner I had chicken breast, asparagus, and Brussels sprouts. Fresh strawberries to finish.
First time in quite a while no starchy carbs. A little less than 2 hours later, I felt quite light-headed. Took BS reading and it was high, 151, at least for this time of day. I thought dizzy would be low.
Can not eating starchy carbs cause this? Is this weird?

Hi,
151 (8.5) at 2hrs is not overly high, and, at least for me, would not be worrying 2 hours after the main evening meal. (My largest meal is usually the evening meal. If you are the same then this is not that abnormal). Did you test the BS an hour later? That should give a much clearer indication of the underlying cause of the BS being at that level.

As for the dizziness. It is most associated with low BS. However, (Although I doubt applicable in this case) if the level were EXTREMELY high, OR raised VERY quickly (More likely) then you can get the same effect. If you have any liver problems or blood pressure issues, this would increase the likelihood.

Looking at what you ate (These are approximate figures depending on variety and brand)

Strawberries have 6g Sugar and 6g Carbs per 100g. Sugar might well cause a sudden increase in levels.
Asparagus 4carbs& 2 sugar per 100
Brussel Sprouts 2 Carb & 2 sugar

12 Carbs is much lower than I would expect to have anything close to this effect.
Do you check the BS BEFORE eating? If so, what was that? It may be that this includes a residual effect from earlier in the day?
What meds do you use to control the blood sugars? This will help to isolate the potential causes.

Feel free to follow up by private message.

Mike aka Wheelie_UK