If you have ruled that out, another cause of yeast
infections is a sudden rise in
blood sugar. In
some women, intercourse can cause yeast
infections. Some women are more susceptible than others.
One last point is, you dont have to be a diabetic to have your sugar cause yeast. The body's general process is, when your blood sugar rises, your pancreas kicks in and makes insulin to bring it down again. In diabetics, the pancreas doesnt kick in, hence insulin shots and/or meds.