Adding my $.02 to the great feedback and suggestions you have gotten already:
I think you should find a traditional Chinese Herb Doctor who can check you out and define what's going on with you in Eastern medical terms. I don't mean an Occidental yuppie-style practitioner, but a little old Chinese guy salted away somewhere in Chinatown whom all the old Chinese folks trust and go to.
It should be someone who can check you out for a condition called "Yin-Fever"; In this condition the patient has many aches and pains, but they have no fever. Western doctors will not find this trouble, only someone who looks at things in the Chinese way will find it.
There is a traditional Chinese herbal formula called 'Chinese Processed Ginseng Roots Compound' which can resolve the condition of Yin-Fever if you have it, and anyhow it would only make you healthier if you took it but didn't need it.
And probably Fo Ti (He Shou Wu)extract would be a good idea also, since you mention secretion and Lymph differences.