Night leg cramps may have other identifiable causes besides diabetes. I suggest posting on the Ask A Doctor Neurology forum to inquire about muscle diseases and types of testing performed for night leg cramps.
Thanks for commenting......but, I don't have lower back issues, and I'm not insulin dependent. I've been diagnosed since last Nov. and my last 2 check ups my A1C was back down to 5.9. I'm controlling the diabetes fairly well, and the cramps just started a couple of days ago. No problem until then. When I was researching night time leg cramps, there was repeated inferences to diabetes. I was wondering what the connection was.
Have you had low back problems before? If yes, get an MRI to see if you have a bulging lumbar disk pressing against a sciatic nerve. Neuropathy is another cause. An A1c of 11.5 may have caused nerve damage. Ask to see a Neurologist who can test for nerve damage.
If you take insulin, insulin can cause low levels of potassium, calcium, magnesium, and sodium which in turn cause muscle cramps. A simple blood test can rules these out.