Damp Heat	In Chinese medicine, as in the English language, one can  catch a cold.  It is like cold air that  has entered your body and has made you ill. In Chinese medicine one can also catch a heat, a damp, a wind or any combination of these. In the case of damp heat, we find a variety of signs and symptoms that all suggest a sort of  imbalance in the body. We see infections with yellow pus and yellow liquids coming from the body in one form or another. It can include anything from too  much earwax to vaginal secretions, from acne to coughing up yellow phlegm. It can also  fester inside your body and produce some of the ongoing health issues associated  with many conditions, one of which is CFIDS.
Latent Heat	In the case of CFIDS there could be an acute  invasion of heat.  The body tries to  overcome the acute invasion, but the heat is not entirely dispelled. It lies semi-dormant for months and years. The body's reaction to this virus gives rise to some of the cases of CFIDS.
Qi Deficiency	First, we need to  understand Qi energy. It is pronounced as "chee". Sometimes it is spelled "chi." It can be described as the energy in our body. It also has many associations with the functions of the nervous system. Latent heat  can lead to Qi deficiency. Some individuals may suffer from Qi deficiency due to  many different reasons.
Blood Deficiency	The function of  Blood in Chinese medicine is a little different than in Western medicine.  The Qi pushes  the Blood around the body and the Blood is the material from which Qi is made.  Blood and Qi rely upon each other. When there is a Blood deficiency, there is also Qi deficiency. The above four syndromes are the key diagnosis that give rise to the typical cases of CFIDS.  There are others, though they are less frequently encountered.