Hello,
I have been having similar problem: bedtime can be between 6-9ish, and then I wake up and it can be up to 11-18!! The other day I got up, walked the dog (briskly) for half an hour THEN took my BG: 12.4....I mentioned this to my DN, and showed her this trend, so she has just upped my evening Glic to 1 in the evening...since started this in the last few days, waking BG has been 8-11, so little improvement....
I don't know if you have looked up/ruled out/considered finding out more about Dawn Phenomenon and the Somogyi Effect?
I found this one quite useful:http://forecast.diabetes.org/magazine/features/rocky-morning-highs
I get terrible night sweats sometimes, and am trying to rule out night-time hypos; the last time did this, my numbers jumped from 9.1 at 5am (woken by nightsweat) to 12.6 some 4 hours later....it's a puzzler alright!!
let us know if you find anything out!
My general question to all is: if you have been hyperglycemic (say, above 15+?! Undiagnosed) for a long period of time, would suddenly or rapidly dropping to say, 8 or 9 be considered hypo? Or is a hypo defined as only 4 or less? I hope that doesn't sound too garbled...