Fluctuating bg levels

achyut1939 said:

My recent bg levels are:
6 July 2019...268 mg/dl ppbg
7 July 2019...91 mg/dl fbg
8 July 2019...205 mg/dl ppbg
9 July 2019...61 mg/dl random hypoglycemia
I do not understand the reasons for these wild bg fluctuations.

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I suggest that you test before each meal and 2hrs after the first bite.
Your Fasting Blood Glucose should always be lower than your Post Prandial, unless 1). You consume virtually no carbs or 2). Your fast is a long one e.eg. Dawn Phenomenon or a long fast - such as with intermittent fasting where you fast for 12 to 16hrs.

As Mr_Pot said, the high PPBG levels look like a typical response to a high carb meal. Your Avatar (or photo) appears South Asian, which makes me think you may be eating rice or one of the breads from that area. Both are extremely dangerous for a Type 2 Diabetic!

I see from your posts in another thread that you are taking a large amount of Insulin. Your BG levels are probably caused by the combination of eating carbs with a high glycemic index, plus your total Insulin required to deal with the subsequent BG spike.

You need to coordinate with your Healthcare Professional so that your attempts at controlling the carbs in your meals are matched with your Insulin injections - so as to have your BG stay in a good zone.

achyut1939 said:

I take one cup of cooked rice with green vegetables for lunch and dinner. It may not be low carb, but it is in small portions. My fbg is under control except for occasional hypos. However, my ppbg is high, or very low, as I have mentioned.

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Do you take fixed doses of insulin, or do you vary it, depending upon what you eat and drink?

We are not Doctors, so we can only suggest things for you to discuss with your Doctor or Diabetes Nurse.
You need to balance your Insulin dosage with your Carb intake. So when you reduce your carb intake, the insuloin dose must also reduce. You need to talk about this with your HealthCare Professional.
When do you take your FBG readings ? Before the Insulin or after?
If you are getting Hypos in the morning before you take your insulin, then it is likely that either you evening insulin dose is too high, or you need to eat more lower Glycemic Index carbs with your dinner.

It seems that you have a total of around 100grams of carbs for lunch & dinner combined.
What do you have for breakfast?

150grams of carbs per day isn't a lot. I have heard that some people on a carb restricted diet are eating as much as 120grams of carb per day. The problem you have is in finding suitable alternatives to the carbs in your diet.

You being a vegetarian makes it difficult for me to make suggestions, however are you vegan? - Or can you eat fish and eggs?

I am only 68yrs old, quite recently diagnosed as T2D and live in the UK. I do eat meat and fish and dairy. I limit my carbs to around 50grams per day - so not quite down to the Keto range but definitely Low Carb High Fat. My breakfast is always 2 boiled eggs which 2hrs later has no affect on my Blood Glucose ( PPBG less than or equal to pre-Breakfast BG).
The other foods I eat much more than before diagnosis are Nuts and Cheese - fats are not the enemy, carbs are!

It could be the time of your dinner, it could be stress or how well you sleep, it could be because the 'veg' is sometimes much higher/lower in cabs than for other meals/days, it could be that on occasions you eat higher Glycemic Index food that on others.
For example I love carrots (raw or cooked) but I can't eat them since they spike my BG. Neither can I eat my favourite fruits: Mangoes, Pineapples and Bananas since they are high in carbs and/or have a high GI.

High GI foods can produce BG spikes and then Hypos as the insulin reaction goes too far.
Stress and poor versus good sleep also affect BG.