Hi Jbsmi,
It's great you are paying attention to what your body is telling you and able to connect the symptoms with a cause. I'm not able to shed light on a potential connection between the dehyrdation, mitral valve prolapse history, and your symptoms. Here is a link to some basic information:
This would be good to discuss with your doctor to get their input.
All the best,
Lisa Nelson RD
7 Natural Ways to Lower Blood Pressure
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