"I have a minor vaginal yeast infection that was brought on by spermicide cream."
Sounds like a run-of-the-mill yeast infection. If these were common and/or severe, that might indicate a problem. If other symptoms were present (chronic fatigue, brain fog, depression, gas, multiple allergies, etc.), that might indicate a candida problem. As JV suggested, I'd take the questionnaire and leave it at that if you score low. The widely used -- and respected -- questionnaire was developed by a dude named Dr. Crook, so I'd add "Crook" to the search so you get his version. If you score higher, read through this forum on the candida tests available.