Covid vaccines and effects on BG

I saw a video this morning of Dr. Bernstein talking about him taking the Covid vaccine and it affecting his blood sugar. He said he didn't associate it with the vaccine at the time but for about a day and a half his BG ran low. He said he started getting reports from some of his patients that they had experienced the same thing. Some of the commenters said they also had low BG readings while others said they had the opposite effect, and others said they had no effect on their BG. I didn't read all of the comments, but one said it cleared up her hives for about 3 days.

Curious about the members and readers of this forum, those of you who have taken a Covid vaccine, did you notice any changes of your BG readings? Any other effects/reactions? First and/or second injection?

Would like to keep this thread limited to vaccine reaction responses. For those wanting to opine on reasons to take or not take the vaccine, please start a new thread.

Addendum: Dr. Richard K. Bernstein, MD. I saw it on FB.