7 Signs of an Underactive Thyroid

Hypothyroidism is one of the most commonly misdiagnosed conditions on the planet. 

Many people suffer for years with various symptoms related to poor thyroid function without ever getting the help they need.  The goal of this article is to help you understand 7 signs of an underactive thyroid so you don’t have to suffer unnecessarily anymore.

Hypothyroidism affects women much more frequently than men with some reports saying anywhere from 5 to 8 times more .  Reports suggest that up to 60% of those with thyroid problems are not aware of the issue.  Here are 7 of the main symptoms we see associated with hypothyroidism.

1. Unexplained Weight Gain  

Many people notice that they begin gaining weight without making any changes in their nutrition and activity levels.  Often, I see women who eat a healthy diet and exercise regularly, but continue to gain unwanted weight.

The thyroid controls our metabolic rate within the cells.  When we are unable to get enough thyroid hormone within the cell, our cellular activity slows down and we burn less calories and store more fat.

2.  Constant Fatigue and Tiredness

If you are noticing fatigue throughout the day, it is a classic sign of low thyroid activity.  This is a natural sign the body gives us that we need to slow down and rest.  If we are noticing a constant fatigue, it is imperative to listen to our body before we drive it even further into hormonal chaos.

Thyroid hormone drives cellular activity and ignites our energy levels.  There are delicate pathways between the adrenal glands, the hormone control centers in the brain (the pituitary gland and the hypothalamus) and the thyroid gland.  When we get excessive activity of stress hormones produced by the adrenal glands, it can lead to lowered thyroid activity and the resulting fatigue and tiredness.

3. Muscle Soreness and Pain

Many individuals with an underactive thyroid present with muscle soreness and pain throughout their body.  They have often been misdiagnosed with fibromyalgia or chronic pain disorder and will often see significant reduction in their pain levels when their thyroid hormone levels are balanced.

The medical literature discusses chronic, generalized pain associated with hypothyroidism presenting in multiple parts of the body including the ankles, legs, wrists, back, neck, arms and shoulders.  These cases are often made worse with exposure to cold weather and are often accompanied by cramping, numbness and tingling.

It is estimated that 80% of all thyroid conditions are autoimmune in nature .  When we have an autoimmune reaction to one tissue, our body most likely has developed autoimmunity to additional tissues.  This may include the muscle sheath, myelin sheath around our nerves or joint capsules, all of which would result in pain if enough tissue damage took place.

4.  Menstrual and Fertility Problems

Women who have issues with their menstruation or are struggling with infertility should consider hypothyroidism as a cause.  An underactive thyroid is linked to 3 major issues with menstruation.  These include the following:

Early Menstruation:

This is also called precocious puberty and involves girls having their period begin before the age of 10.

Heavy Periods:

This is called menorrhagia and involves women or young girls having periods that are heavier than usual.

Frequent or Longer than Normal Periods:

Many women with hypothyroid issues will notice a significant shortening of her cycle or periods that last longer than normal.

When the thyroid is not working properly, the body believes it is important to be in a hibernation mode and that the outside environment is not safe to have a child.  Here is how it effects fertility:

High Prolactin Levels:

Prolactin is a hormone released from the anterior pituitary gland that allows for lactation to develop after childbirth.  High prolactin levels reduce fertility in women, which is why women are significantly less fertile when nursing.

The anterior pituitary gland is also where thyroid stimulating hormone is released and if the hypothalamus senses low thyroid hormone activity, it will ramp up thyroid releasing hormone, which will then effect the anterior pituitary and often lead to elevated prolactin levels as a result of a massive jolt of activity on the pituitary gland.

Anovulatory Cycles:  Very high prolactin levels will often result in what is called anovulatory cycles.  This is where no ovulating egg occurs, which of course, makes pregnancy impossible.  Many women with hypothyroidism do not ovulate.

Luteal Phase Irregularities:  High prolactin can cause a reduced amount of progesterone to be produced after ovulation.  This would result in a weak uterine lining that is less viable for embryo implantation.  This can result in a period that comes shortly after ovulation, thus more frequent but shorter periods can occur.

Other Hormonal Issues:  Some of the other issues involved with hypothyroidism can include estrogen dominance and low sex hormone binding globulin (SHBG), which will both interfere with normal reproductive capabilities.

5.  Dry and Flaky Skin & Brittle Hair

Thyroid hormone is important to the production of the sebum in the sebaceous glands of the skin.  Sebum is the oil that provides for healthy skin and hair.  With inadequate sebum production, one will often develop dry and flaky skin and dandruff.

The skin can also become extremely cold, dry and pale with hypothyroidism.  The dryness can be so bad that there may not be any sweating and the palms and soles can get thick and dry causing a condition known as keratoderma.

Hair loss can be diffuse and widespread involving the entire scalp rather than discrete areas.   In many cases this is due to an autoimmune attack against the hair follicles.  Since 80% of thyroid problems are autoimmune in nature, this is a common mechanism.

Additionally, thyroid hormone is important for the growth and development of the hair follicles and without adequate thyroid hormone the hair can become very dry and brittle.

6.  High Cholesterol Levels

One of the biggest reasons for high LDL cholesterol levels has to do with low thyroid hormone production.  Unfortunately, most medical doctors run a simple lipid panel, see the high cholesterol and treat with statin medications that never get to the cause of the real issue – the thyroid.  In fact, statin medications deplete CoQ10 in the mitochondria, causing a worsening of thyroid function.

Thyroid hormone is a key player in the formation of cholesterol and in the expression of LDL receptor expression.  Low thyroid function leads to poor expression of the LDL receptor and increased cholesterol production by the body.  Basically the body doesn’t realize how much LDL it is producing but the receptor is not reading it.

7.  Poor Concentration and Memory

Thyroid hormone plays an important role in brain function.  In fact, the brain is saturated with thyroid hormone receptor sites which play a role in the formation of key neurotransmitters like dopamine, acetylcholine and serotonin.  Low dopamine levels can lead to poor concentration, while low serotonin can lead to depression and insomnia.

One of the classic symptoms of hypothyroidism is depression.  Many physicians will diagnose and treat depression without ever considering the thyroid.  Others will experience insomnia and be treated with medications for that without any focus on testing the thyroid.

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