Is it possible to have a normal level of the cholesterol and at the same time hypo/hyperthyroid problem? @Leo Gura as far as I know you have encountered the thyroid problem. There is some shit going on with my health, if you are curious details are here in the latest post. Symptoms look like B12 defficiency or thyroid problem, but my B12 blood test result is above 300 pg/ml and 200-900 is considered to be the normal range, or 500-1300 in some sources, which doesn't look like very strong deficiency, plus I have high levels of hemoglobin. My cholesterol is in the middle of the normal range. Can that vary a lot from test to test, depending on what you eat, how you sleep, what you do etc? I'm doing the research and trying to exclude the things that doctors may not suspect due to their orthodox knowledge. In the state hospital they suspected bipolar and trying to exclude heart desease, kidney disease, neurological stuff and I'm appointed to all of that + ultrasound of the abdomine. I have read in several sources that you have to exclude thyroid stuff before you get diagnosed with bipolar. I said that to my doctor and he was skeptical because my blood doesn't show anything significant in regards of the common analysis (slightly heightened lymphocytes) + creatinine (close to the upper limit) + cholesterol (in the middle) + sugar (close to the upper limit). I'm trying to convince my parents to give me money to order the thyroid test, TSH, T3, T4, + antibodies, very occasionally I have slightly heightened body t for over 1 month that doesn't respond to antibiotics prescribed by my doctor, maybe there is an autoimmune attack on my thyroid.