Lin Syndromes
There are four types of Lin (Urinary Disturbance) syndromes:
Stone Lin (Shi Lin) – caused by improper diet, especially greasy, sweet foods and alcohol, leading to generation of Damp-Heat condensing into stones; severe colicky pain, during urination due to stone blocking the urinary tract causing sudden interruption of the Qi flow. Tongue: red body with yellow-sticky coating, Pulse: rapid, rolling
Qi Lin: – Liver-Qi Stagnation turning into Fire due to emotional disturbance, affecting the Lower Warmer; difficult hesitant urinary due to stagnation of Qi, distension signs and fullness in the lower abdomen, especially in the bladder area. Tongue: may be normal, Pulse: wiry
Milky Lin (Gao Lin) – cloudy, due to Kidney dysfunction, affecting urine flow (lymph gets into urine); cloudy urine, and other Kidney Deficiency signs. Tongue: red body with little coating, Pulse: deep, thready, rapid
Overwork Li (Lao Lin) – exhaustion, overstrain, stress or sexual indulgence, resulting in Deficiency or Sinking of Spleen and/or Kidney Qi; difficult urination, dribbling of urine, or incontinence of urine, and other Spleen and/or Kidney Deficiency signs. Tongue: pale body with a thin-white coating, Pulse: deep, thready, weak
Tongue Coating
In short, yes. If there’s no other information, it’s safe to consider coating to be just a reflection of body fluids and/or temperature. If there is a case study that is leaning towards a pathogen, then it’s safe to consider that.
Complexion
Bright-pale – this is not a colour. If you mean pale-white, then this indicates Qi Deficiency.
Bright-white usually indicates Yang Deficiency.
You can see the contrast between pale-white and bright-white.
For Caucasians, normal complexion is considered a mix of white and slightly reddish. Chinese medicine books describe a normal Chinese complexion to be mixed red and yellow.