A couple thoughts on the topic
Gestational Diabetes often pairs with other problems coincident or later in life, for example, high blood pressure, PCOS, hyper trigliceride levels, etc., so may be a warning sign. If you check the genetic databases at NIH with key words of diseases, or with specific mutations of which you may be or become aware, example MTHFR 1298A or 677, you will see come genetic concurrences. You will also see some manifestations that can occur with some of these genetic coincidences. This does not necessarily mean that any of this will express on your particular genetic materisl, but it does mean you have a few clues of what can be expected, especially if you have relatives that share their tests with you
As for drops in bloodsugars, this is hypoglycemia which you can monitor yourself after meals. You can also plan your meals and snacks to ameliorate the same. Having some proteins handy like nuts or chicharones (fried pork skins) or similar can help, but knowing your likelihood of a drop from testing will let you know your window for helping yourself and with what. From decades of helping a relative with this, I suggest the gentle protein method but knowledge is power with a hypo
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