Symptoms of an overactive thyroid gland are generally symptoms of an increased metabolism. These can include weight loss, nervousness or anxiety, irritability, a racing heart, increased bowel movements, sweating, sleeplessness, hand tremors, and muscle weakness.1  Previous.2  Continue.n addition to fatigue and weight gain, symptoms can include depression, constipation, sluggishness, dry skin and dry hair, and muscle cramps. Some people develop an enlarged thyroid, which leads to a swelling in the front of the neck known as a goiter.. 1  Previous.
Examples of oils containing Phenols â Wintergreen, Anise, Birch, Clove, Basil, Tarragon, Fennel, Oregano, Thyme, Mountain Savory, Peppermint, Tea Tree, Calamus, Cinnamon Bark, Citronella, Marjoram, Nutmeg, Eucalyptus citriodora, Parsley, Ylang Ylang. These all contain greater than 8% phenols.
An essential oil is a liquid that is generally distilled (most frequently by steam or water) from the leaves, stems, flowers, bark, roots, or other elements of a plant. Essential oils, contrary to the use of the word oil are not really oily-feeling at all. Most essential oils are clear, but some oils such as patchouli, orange and lemongrass are amber or yellow in color. Essential oils contain the true essence of the plant it was derived from. Essential oils are highly concentrated and a little goes a long way. Essential oils are not the same as perfume or fragrance oils.