Testosterone is, for the most part, a male hormone produced by the testicles, although a smaller amount is produced by the adrenal glands (which sit on top of the kidneys). This hormone is responsible for the development of male physical characteristics, muscle mass, strength, fat distribution, and sexual drive. Smaller amounts of testosterone are also produced by women in the ovaries and the adrenal glands. To be more definitive, testosterone is an androgenic, anabolic, steroid hormone.
Best Answer: Normal B12 range is 200 to 600, so your results are considered low. The bloodwork that the other doctors did might not have included a B12 test.12 is stored in the liver, so it can take some time (even years) for a B12 deficiency to show up after you've had problems absorbing it. (Usually it's related to lack of intrinsic factor in the stomach.) Mono (Epstein-Barr Virus) and CMV can certainly cause fibromyalgia-like symptoms.
The normal range for CO2 is 23 to 29 mEq/L (milliequivalent units per liter of blood). The blood test often measures blood pH along with CO2 levels to further determine the cause of your symptoms.