Well, the good news - your insulin responded to the BG rise.
The not so good news is that your body doesn't like glucose. Hence the high spike at 30 minutes. The good news again is that your insulin followed to take care to bring it down quickly.
The next good news is that you returned to "normal" within an hour. The 1.5 hour and 2 hour fluctuating marks should be an indication to you of insulin resistance may may develop, depending on what you eat and how you move your body. Those continued high insulin levels could lead to problems. 86 insulin is REALLY HIGH. This, without other information would suggest insulin resistance. Anytime insulin is above 80 indicates resistance. Some physicians put the figure at >70. (I believe this lower level is preferred by endocrinologists, the higher level by American Diabetes Association)
Not everybody spikes, some see a slow rise after 30 minutes and a peak at 1 hour, some others see a stead rise all the way to the 2 hour mark.
What were you eating 3-5 days before this test? What sort of exercise were you doing? How much do you sleep? Do you take other medications?
Eat/sleep/exercise3 all factor into how your body processes nutrients and what lab values you will see when you repeat this test. Did you get an HbA1C test at the same time? that level can also help you discover your path, in addition to your other blood markers (cholesterol, C-RP, etc.). If you were severely low carb before the test, your body might have a hard time processing the carbs, hence the spike.
Go get an inexpensive blood glucose meter and enough strips for 30 days. Plan your meals and test before and 1, 2, 3 hours after. No need to re-test meals that are repeated, just test "new" foods. Also record your type and intensity of exercise. A pattern will emerge that will give you YOUR best practices on what is best for you to eat and what type of exercise works to improve glucose sensitivity.
HIIT can work, but if you are overly stressed and not getting sufficient sleep, your cortisol levels will spike and make your BG spike after exercise as well.
Plan on the meter/strip protocol to cost ~$100. If you can get the strips online, you'll save a few $$$.
Please report back and let us know what you learn!