Have you tried tongue scraping yet?
 
Overnight, as the body processes everything that was ingested that day, toxins (called ama in Ayuveda) begin to form, and are visible as a coating on the tongue. If the ama is more of the kapha variety, it will appear as a thick, white coating. Pitta ama tends to be more yellow, and vata ama is brown.
 
Tongue scraping, or jihwa prakshalana, is a traditional part of Ayurvedic self-care and also a great way to check in with your body each morning.
 
How to Tongue Scrape
Scrape your tongue first thing in the morning, before drinking water.
Use either a stainless steel or copper tongue scraper, like Banyan Botanicals' Tongue Cleaner. There are plastic tongue scrapers out there, but I’m not a fan, as they are harder to keep sanitary.
Stick your tongue out and allow it to be loose and heavy.
Work the tongue scraper back to front five to seven times, rinsing the scraper after each round. Follow with brushing, flossing, and a large glass of warm or room temperature water. Drinking warm water first thing provides a gentle flush for the GI tract and the kidneys, and also stimulates peristalsis.