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Follow the nutating glucometer readings... is there such a thing as "BG Wobble"?

Five years, and I'm still trying to figure this out. Empirically, it looks like I go through two- or three-month cycles, where one month all my numbers will be high regardless of what I do, the next month they'll be low, and the third month they'll be normal, and then the cycle will start again.

Unfortunately, it's not an exact cycle and it's not an exact science. Sometimes it's two months, sometimes it's four. Any relation to my monthly cycle is purely coincidental: one month, I'll drop two or three days before menses, and another month, I'll rise at the same time of the cycle.

Weather also seems to be an issue. I think I have more lows in the winter than in the summer, but then I'm paralyzed enough by cold that in summer I'll get lows from dehydration or extra activity.

After a month of running high enough that I was about to go to the doctor for an out-of-sequence check of my high numbers, today I can't seem to keep them high enough to be "normal people normal".

Now, for those who are on insulin, it's a matter of adjusting your injections or your basal rates and boluses. I'm Type 2, on diet-and-exercise, and getting precious little of the latter (something about having to be home until The Other Half leaves for his swing-shift and having to stay near the phone in case a potential employer calls with a potential offer for me)... leaving the Scylla and Charbydis of healthy eating versus unhealthy, and follow-the-bouncing-glucometer; trying to get back to a healthy weight or increasing my level of obesity... and trying not to stress my blood pressure into the realm of having to have my doctor up the dose of Cozaar.

This odd, can't-pin-it-down cycle reminds me of the "polar wobble" responsible for the Earth's occasional Ice Ages and interglacial periods. Am I the only one with "BG Wobble", or are there others? Has anyone figured out what might be behind it?

Answers, or maybe even better questions, would be useful.

Views: 20

Tags: Type 2, blood glucose levels, diet and exercise

Comment by Toni Crebbin on March 28, 2008 at 7:05am
I'm a T1 and have noticed that I wobble too. I have no explanation for these patterns....if I did, I would certainly write a book! I'm not doing anything different from month to month, but I get these long spans of running low, sometimes high, and mostly right on.
Comment by Jenny on March 28, 2008 at 8:40am
Just out of curiosity, is it possible you are getting boxes of test strips that aren't consistent with each other. I had a problem with one brand of meter where each box read completely different from the other. I've also seen that the True Track and some other cheaper strips seem to deteriorate as they get older.

What meter are you using?
Comment by tmana on March 28, 2008 at 11:02am
I recall this happening when I was still using the Accu-Chek Active, and it's happened with the Therasense Freestyle and Freestyle Flash. I'm looking at strips from the same code lots, and often from the same vial. Control tests suggest that the strips are acting correctly, though there does appear to be some variation (within stated tolerances) based on ambient temperature and insolation. OTOH, I'm wondering if seasonal dietary variation might be something I'm not taking into account (i.e., winter-holiday season, Passover, summer-it's-too-hot-to-eat-anything-but-salad, and this-is-all-I-can-find-when-I'm-dropping-at-the-street-fair)...


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