Many things: Please define YOUR meaning of the word "dizziness" because a number of things can cause isolated vertigo vs. lightheadedness. I see that you've had a cardiac workup which is good. I take it that it was negative? Are your thyroid levels recently checked and OK? There is also a condition known as positional vertigo which is not uncommon in young people and misdiagnosed as other things.
Answered 7/3/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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