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Dr. Abby
Dr. Abby, US Board Certified MD
Category: Medical
Satisfied Customers: 10330
Experience:  Family Physician practicing medicine for over 10 years, United States
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can dehydration cause sudden shortness of breath and excessive

Resolved Question:

can dehydration cause sudden shortness of breath and excessive sweating after a 30 minute workout. i am 63 yoa in fair condition
Submitted: 5 years ago.
Category: Medical
Expert:  Dr. Abby replied 5 years ago.
Hello,

Were you working out outside in hot conditions?
Any chest pain?
Dizziness?
Do you have any history of heart or lung problems?
How are you feeling right now?
Is there a reason you would be dehydrated? (other than exercise?)

Dr abby
Customer: replied 5 years ago.
work out in a gym with air conditioning, no chest pain,slight dizziness, no history of lung or heart disease. feeling ok now. don't know of any reason for dehydration unless not enough water during that day
Expert:  Dr. Abby replied 5 years ago.
Thank you for clarifying,

This does not sound like dehydration, to be fully honest.
Dehydration will cause dizziness, weakness, heart palpitations and decreased sweating. Shortness of breath is a possibility as well but with the increased sweating, this does not sound like you were dehydrated.

I would be more concerned about an underlying cardiac (heart related) cause of the shortness of breath/sweating.
Even without any obvious chest pain, this could still be related to your heart.

I do recommend that you be checked out. If you have ANY residual symptoms right now (weakness, dizziness, shortness of breath, nausea, sweating, arm pain, etc) go to the emergency room.

If not, make sure to follow up with your doctor tomorrow to discuss the episode.

Feel free to ask any follow up questions you may have,

Dr Abby

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