That was quite a hit.

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Blood sugar was 238, down from 261 waking.  I have been eating keto for going on the second day.  I hit a second, large, dose after the second reading.  I was starting to feel ill.  Almost as if my blood sugar was cratering.  But that couldn't be it.  So I waited for the timer to ring, then checked.  At 71 I think that really was the problem.

It isn't the lowest number I have seen.  And, when blood sugar is more stable it usually wouldn't be a problem for a few more points.  It is both the relative low compared to recent highs.  A drop of 167 points in an hour and a half, plus being 350 or so for several days... big changes, fast changes.

I am avoiding carb tabs.  The spike can be severe, if it doesn't last long.  A tuna sandwich, using keto pita, plus a glass of milk.  So tired from the crash though.  Still feeling a bit woozy.  I want to check blood sugar again an hour after eating.  Then I will sleep.  I have carb tabs up there, just in case.  So tired on top of already being exhausted though.  Later, or good night.
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Good call.  Food brought blood sugar up to 91.  In one sense that is still a bit low.  Especially only an hour after eating.  It will go down after this.  I am feeling better, but still plan to go on to bed again.  Better, but not well.  That drop really took it out of me. As mentioned, I keep carb tabs up there, and seem to sense a drop coming.  I won't question it again, after this.  Though, usually, blood sugar rises for me through the night as I sleep.

Good night.