Tongue diagnosis

Hi,

I have been concentrating on bowel cleansing using Oxypowder and lepicol (psyllium based) for a number of weeks. My diet comprises mainly chicken/turkey, salad, vegetables and fruit. In the last week or so I have started taking the cleansing drink which I believe has made a difference - could be the apple cider vinegar. I have also been taking the protein shake occasionally.

This has all been in an effort to improve my skin which is very acne-prone as well as my overall health. I have seen improvements, most significantly since I have been taking the cleansing drink.

One problem though - my tongue doesn't look too healthy. Not sure how long it's been like that because I've only examined it recently having read a little bit about tongue diagnoses. The back one third has an uneven texture with visible very slightly raised 'pimples. The back half is also a yellow/brown'ish colour. Slight whitish coating on the back half also.

I'd be grateful for any thoughts on what could be causing this and what I should do to address it.

Thanks so much for your help.