Talking with MFM today but wondering if anyone else has highs when sick.

Over the past week we’ve been working on correcting insulin doses so they work for me. I started with having lows with cold sweats then severe dizziness around 49-52. I’ve had dizziness like this forever abcs also highs outside of pregnancy but with my A1C being 4.2 they never looked further into it. I woke up sick on Saturday and ever since it seems like the insulin doses just aren’t enough and my fasting numbers are creeping up again. Nowhere near where they usually were around 135 ish but they’re over 100 and they want them to be under 95. A bowl of special k cereal with almond milk took me over 220. (1.25 cups red berry special k and 1/2cup almond milk). Does anyone else get highs when sick? This was normal for me prior to insulin but I’m only just over a week in and unsure of what to expect. Again, I’m talking with my MFM after lunch today.