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A 33-year-old female asked:

for several weeks now i've been having severe brain fog. my tsh and blood sugar are normal. what could cause that? only prescription are levothyroxine & calcium

1 doctor answer4 doctors weighed in
Dr. Donald Jacobson
A Verified Doctor answered
A US doctor answered Learn more
Brain fog: Is a state of mind with subtle confusion and lack of mental clarity. Causes can be stress, depression, sleep apnea, fibromyalgia, chronic fatigue, insomnia, hypersomnolence, chemotherapy, lyme's disease, nutritional deficiencies, depersonalization disorder, mononucleosis, blood sugar abnormalities, thyroid abnormalities, severe hypertension, renal failure, anything that can cause low blood oxygen levels such as emphysema, copd, congestive heart failure, and chronically low blood pressure.Best wishes.

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Last updated Apr 11, 2014

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