Several of us have reported, in the past, occasional episodes of hypersensitivity to carbs. For us, when we are low, occasionally (rarely) we get a 20:1 mg/dl.g ratio in BG variation per carb ingested rather than our standard 4-6 mg/dl.g ratio.
For us, I am now wondering if this may be due to unusual CGM reporting delays for the previous ingestion of carbs. If the CGM, for some reason, is a bit later than usual in reporting BG changes when taking a first dose of carbs, the apparent effect of the second dose may compound the effect of the previous dose of carbs.
To test this, I have now asked my son to systematically finger-test before taking a second dose of carbs when low. In the past 2 weeks, we have not had a single example of “hypersensitivity.”
Could this possibility explain what others have seen?
Of course, I may just have jinxed it – I figure the first thing I’ll see tonight is a huge peak after taking 8 carbs to straighten out a low…