Robi:Do the morning spit test:
First thing in the morning, wake up and do not drink or put ANYTHING in your mouth: no gum, no tooth brush, no nothing.
Get yoruself the coldest glass of water that you can. Even if you have to refridgerate it the night before. Set it out on the counter, work up alot of spit, and spit it into the glass.
Do not shake or stir
wait 15 minutes, and if you see something growing out of it that looks like roots, you have yeast. That is ONLY a simply home test to check yourself for yeast.
You could simply also, scrape your tongue, put it in the water, and see what happens. Dont scrape your tongue and dip it in the water, you'd look mighty funny.
n order to do that, take note: any foods that contain yeast might leave remnants on your tongue, and give you a false positive glass/water test. Scrub the living crud out of your tongue the night before.
Use peroxide, AND baking soda. Use probiotics if you must. DO NOT eat or drink anything, go to bed, wake up in the am
and scrape yoru tongue with the scraper and get whatever you can off of that ( gross, I know)into the cold glass of water and see what happens. Does it grow stringy stuff?
Give it at least 15 minutes to see if it does grow anything. Sometimes 20.
Other than that, you can find yuorself a good wholistic doctor who will use a huge q-tip that strikingly resembles
a womans pap smear q tip tester
and scrape your tongue and let it grow. I had that done. He also went up my nose and about plucked my brain with it, and yep, he found it up there. That was the closest I will ever get to a lobotomy in my life.
Now, to combat yeast on the tongue- remember something. When you get a rash of any sort on the outside of your body, what does that mean?
SOMETHING is on the inside. If you have yeast on your tongue, ya got it inside. No doubt about that, and more than likely 99.9 percent of it is in your digestive tract.
You cannot combat oral thrush without hitting where the saliva that is worked around in your mouth, and in constant contact with the trush, then swallowed, goes, ie, the digestive tract, intestines, bowels, etc.
You can make the "candidal soup"
4 cups of water
2 chopped onions
4 cloves garlic
salt
sage
thyme
ground cloves
ground black pepper
acidophillus yogurt
The water, garlic and onions should be boiled in a saucepan, then add the rest and drink it. Sounds yummy, huh?
Dont be afraid of Pau D. Arco tea either, you can even add it to the above, if yuo have a hardy stomach.
*anyone* that suffers vaginal or thrush yeast is polluted with yeast. Its your bodies way of saying " I got too much on the inside, thus, hello"
Don't forget your DIGESTIVE ENZYMES. You can battle yeast out the rear end, but yeast screws up your bodies break down ability. If you don't add digestive enzymes, forget it.
You can chew garlic. No one will like you, but since I can only see your posts and not smell your breath, you're fine with me 
You can swish acidophillus in your mouth. Personally, if you are trying to get rid of yeast- dont swish acidophillus and swallow it. Dont swish anything and swallow it.
All you're doing is dislodging oral thrush and helping it get straight down into your gut with no questions asked.
Are you using natural toothpaste? Dont be afraid to use baking soda when you brush. It does wonders for making the tongue pink.
Keep after your body. Remember- if its coming out, its in too.