One easy way to 'test' for yeast imbalance is to do a saliva test. Just google candida saliva test......essentially you spit into a cup of water in the morning. Easy and inexpensive
For me, the road to battle yeast has been LONG for me (a lifetime of problems and about 6 yrs of experimentation and diets all over the place). Am I cured? Not sure, but I am certainly 500 times better then I was.
I feel like I have been dealing with the chicken and the egg syndrome. Was the yeast problems what caused all my gut problems, food intolerance, and chronic pain? OR, was the food intolerance (grain) what caused the imbalances that made the yeast a secondary issue? Or to add to it, I realized I was a person who stored up tension and stress...so was it emotional imbalances that caused the whole shebang in the first place?
Who knows really....I have learned over the years to instead focus on doing all the right things on all levels as best I can. Deal with the emotional stuff, eat the right foods consistently over a long period of time (when it comes to yeast or repairing the gut balance, a month of the right food does not heal), surround myself with balanced positive people, and stay active and take the right supplements to provide the best environment for healing. In the end, yeast or not, these are all good things to do. So I eventually stopped focusing on candida and focused on just living a full life and putting my health as a top priority. Finding Primal just gave me back up on why eating the way I did worked .