Sudden low BP: It sounds like your blood pressure is dropping briefly. When this happens, you will get dizzy, possibly get a headache and your brain can feel foggy from a brief lessening of oxygen. With the dry eyes as well, it sounds like you may be dehydrated. You are in a heat wave. Make sure you keep your fluids up. If it worsens, go to the er for IV replenishment.
Answered 6/10/2014
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