I've just tried to work out and
@Brunneria could help me out here, as my conversion may be a little out!
The only thing after the time you spent at the test is that you do have high enough blood glucose level to be diagnosed prediabetic and insulin resistant!
I know, but there are clues to why, the test should be looked at different.
First, the normal fasting blood!
Second, the abnormal quick spike!
Third, the twitch, which as you said
@Linagirl is symptomatic of your levels dropping.
Fourth, your history of feeling hypo after more than the tests length!
If you have your food diary record, this will help this so called expert to do more tests than the obligatory two hours OGTT!