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A member asked:
What are the causes of brain fog and breathlessness upon standing? no racing heart or dizziness, just heaviness. comes and goes, worse when tired.
A doctor has provided 1 answer
Forgetting to breath: Without any other information available about your condition, the one thing that comes to my mind is failure to remember to breathe when you are tired. This would lower your oxygen in your blood and cause both brain fog and a feeling of heaviness in your chest along with breathlessness. This can occur in sleep apnea and i recommend a sleep medicine consult.
Answered 7/4/2016
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