Have you checked your thyroid for HYPERthyroid because the primary symptom of that is muscle loss. And it is NOT TRUE that you
lose weight when you are hyper...according to John Johnson at
www.ithyroid.com, it depends on your potassium level...if you are low on potassium and hyper, then you GAIN weight. I went hyperthyroid when I took Iodoral and had all the symptoms but the ones that stood out the most were buzzing in the brain (Well Iodoral is a VERY high dose of iodine, I think if you're only a little hyper it might be just a ringing in the ears), and heart palpitations. The muscle loss thing happens over time if you have that condition untreated. My neighbor's sister had severe muscle wasting before they diagnosed hyperthyroid. Before getting your thyroid checked, go to
www.stopthethyoidmadness.com and look at what tests you need to rule out thyroid issues. TSH is not a remotely adequate measure of thyroid function (it is not even output by the thyroid and it can take years to reflect thyroid issues). There is a panel of thryoid tests recommended and if you don't get FREE T3 you really don't know if your thyroid is up to snuff, there is also REVERSE T3, and two thyroid antibodies. Then to determine why your T3 is not right you do also want to see FREE T4 and TSH. Life Extension says the lab reference ranges are too wide to be an effective diagnostic. If you scroll through all their blood tests at the link below you will find what they consider to be more useful reference ranges for the thyroid tests and I have quoted some of the studies they used to defend their position on TSH values:
http://www.lef.org/protocols/append...earch&key=thyroid blood test reference ranges
In a study to evaluate psychological well-being, impairment was found in patients with thyroid abnormalities who were nonetheless within normal TSH reference ranges (Pollock MA et al 2001).
The authors of the Lancet study stated, The emerging epidemiological data begin to suggest that TSH concentrations above 2.0 (mU/L milliunit per liter) may be associated with adverse effects.
The authors prepared a chart based on previously published studies that provides guidance when interpreting the results from TSH blood tests. Here are three highlights from their chart that may be useful in understanding what your TSH values really mean:
TSH values greater than 2.0: increased 20-year risk of thyroid deficiency and increased risk of thyroid-induced autoimmune attack (Vanderpump MP et al 1995)
TSH values greater than 4.0: greater risk of heart disease (Hak AE et al 2000)
TSH values between 2.0 and 4.0: cholesterol levels decline in response to thyroxine (T4) therapy (Michalopoulou G et al 1998)
Despite these intriguing findings, the Lancet authors stated that more studies were needed to define an optimal TSH range, suggested as 0.22.0 instead of 0.25.5 (mU/L). Note: These optimal reference ranges are now expressed in mIU/mL, so the ideal range according to this epidemiological data is 0.352.1 mIU/mL.
If you have depression, heart disease, high cholesterol, chronic fatigue, poor mental performance, or any of the many other symptoms associated with thyroid deficiency, you may want to ask your doctor to defy the reference ranges and try a different thyroid replacement therapy. (so say
www.lef.org, and at WrongDiagnosis it seems like most of the people there found brain fog was tied to thyroid problems and cleared when they were corrected).
OH! Don't be scared -- HYPERthyroid is more scarey than hypo, but John Johnson found that all his hypers at his site were low in copper and he believes that copper is required to turn off the thyroid. He has directions for treating hyperthyroid and John Johnson's protocol is also published in a book on Graves by Mary Shomon sold at iherb.com for $10 if it turns out you need to know.
MY THEORY is that copper deficiency affects the thyroid because of the fact that METHIONINE SYNTHASE requires copper as a cofactor. W/o enough copper, one cannot make enough methyls and methyls are used to turn off/on chemical reactions (one such may be the reaction to make thyroxin). John Johnson was a smoker and cadmium binds with cpper or something to make one deficient. Estrogen helps women absorb copper and after menopause it is not unusual for women to become deficient. One of the things copper is used for is cross-linking of collagen...without cross-linking it is like building a house without staggering the bricks -- it makes a weak structure. Blood vessels are made of collagen and if it is not cross-linked, they will burst when a blood clot comes through --which is an aneurism. There are many instances in the medical literature (I could find many examples if interested) of copper deficiency causing the same symptoms as B12 deficiency (because the end result of insufficient methylation is the same). Copper deficiency has additional symptoms such as aneurism. There was a recent lawsuit against a dental fixative which contained zinc as it was causing parathesias in its users as zinc blocks copper absorption (and a dental adhesive is in the mouth all day).