Does anybody know what the appearance of the tongue means?

Hi,

I have had pretty bad digestion and fatigue problems for over a year now. I am not quite sure how it started, but not much has really helped me improve so far including different diets and a lot of supplements and acupuncture. I think it is more the emotional problems I have experienced that make it hard to improve with this illness, but I would still like to keep my options open.

I am pretty interested in Ayurveda and Chinese medicine as i find their concepts a lot less conflicting than Western treatments and I was wondering if anyone knows what the state of the tongue means about the body? I've had a very swollen tongue with teeth marks on the sides ever since I got this illness as well as a thin white coat in the morning on the tongue.. I've read that this means nutritional deficiencies and bacteria, but I'm not too sure what to do about that if I already have bad digestion and my body doesn't want to absorb nutrients :/ its kind of like a paradox.. My main problems are fairly bad bloating which seems to be there even if i don't eat, gas, food sitting in my stomach, constipation and fatigue.. I also appear very skinny even though I am at a normal weight on the scale which I find to be really weird..

Does anyone have any information on what might be going on here and what I might be able to do to help myself? Do things like sleep problems and mental stressors play a big part in this? I would really love to rebalance my body so that it can maintain itself normally.. but it seems to be a difficult task

Thanks a lot