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A member asked:

A few days ago i fainted after hot tubbing. i have demyelination in my calves and have tremors & migraines often. what could cause this?

A doctor has provided 1 answer
Dr. David Lipkin answered

Specializes in Internal Medicine

Several causes: Relaxing in a hot tub naturally lowers your blood pressure a bit. Sweating causes an element of dehydration. Your blood vessels dilate to help cool your body. The combination can lead to a significant drop in blood pressure on getting out of the tub. Patients with a demyelinating disorders may also have autonomic insufficiency(Dysautonomia) which by itself can predispose to syncope.

Answered 4/10/2015

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