guys, turns out i think it was an acid imbalance in my body that was causing this white coating on my tongue..i have switched from my acidic diet to a more alkaline diet and i am already seeing great results!
if this might be a problem for you guys, go to http://www.trans4mind.com/nutrition/pH.html
and scroll down...switch to a more alkaline diet
also, go to earthclinic.com and look up apple cider vinegar..they have some good cures on how to balance pH. the one that worked for me:
1/4 tablespoon of baking soda and 2 teaspoons of apple cider vinegar..mix in 4-8 oz of water and do that 3 times a day.
good luck guys!