Mycoplasma
Crystalline Brucella
The title page of a genuine US Senate Study, declassified on February 24, 1977, shows that George Merck, of the pharmaceutical company, Merck Sharp & Dohme (which now makes cures for diseases that at one time it created), reported in 1946 to the US Secretary of War that his researchers had managed "for the first time" to "isolate the disease agent in crystalline form".
They had produced a crystalline bacterial toxin extracted from the Brucella bacterium. The bacterial toxin could be removed in crystalline form and stored, transported and deployed without deteriorating. It could be delivered by other vectors such as insects, aerosol or the food chain (in nature it is delivered within the bacterium). But the factor that is working in the Brucella is the mycoplasma.
Brucella is a disease agent that doesn't kill people; it disables them. But, according to DR Donald MacArthur of the Pentagon, appearing before a congressional committee in 1969,4 researchers found that if they had mycoplasma at a certain strength -- actually, 10 to the 10th power (1010) -- it would develop into AIDS, and the person would die from it within a reasonable period of time because it could bypass the natural human defenses.
If the strength was 108, the person would manifest with chronic fatigue syndrome or fibromyalgia. If it was 107, they would present as wasting; they wouldn't die and they wouldn't be disabled, but they would not be very interested in life; they would waste away.
Most of us have never heard of the disease brucellosis because it largely disappeared when they began pasteurizing milk, which was the carrier. One salt shaker of the pure disease agent in a crystalline form could sicken the entire population of Canada. It is absolutely deadly, not so much in terms of killing the body but disabling it.
Because the crystalline disease agent goes into solution in the blood, ordinary blood and tissue tests will not reveal its presence. The mycoplasma will only crystallize at 8.1 pH, and the blood has a pH of 7.4 pH. So the doctor thinks your complaint is "all in your head".