Hormone-withdrawal associated symptoms

Jensen JT, Parke S, MeUinger U, Serrani M, Mabey Jr RG. Hormone withdrawal-associated symptoms comparison of oestradiol valerate/ dienogest versus ethinylestoadiol/norgestimate. Eur J Contoacept Reprod Health Care 2013 18(4) 274-83. 

We cannot even assume that the body s own neurotransmitters are perfectly safe and free from the horrors of tolerance and addiction associated with drugs such as heroin. It is quite possible to be addicted to one s own neurotransmitters and hormones. Some people are addicted to exercise and are compelled to exercise long hours each day in order to feel good. The very process of exercise leads to the release of hormones and neurotransmitters. This can produce a high , which drives susceptible people to exercise more and more. If they stop exercising, they suffer withdrawal symptoms such as deep depression. 

Electrolyte balance In patients with metastatic thyroid carcinoma undergoing treatment with I, levothjTOxine is withdrawn and a low iodine diet prescribed to improve treatment efficacy. Significant hyponatremia, associated with symptoms including weakness, dizziness, fainting spells, lethargy, and nausea, has been reported in five patients during levothyroxine withdrawal and a low iodine diet. Combined low sodium intake and the syndrome of inappropriate antidiuretic hormone secretion secondary to hypothyroidism or metastatic disease were proposed as potential underlying mechanisms [13 ]. 

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