Hi. I'm a 54 yr old female with high cholesterol
I would explain as follows:
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I understand your concern and would explain that your symptoms could be related to low blood pressure, probably caused by dehydration and the diarrhea.
It may be a food intoxication or a viral infection which caused the nausea and the massive diarrhea.
For this reason, I recommend you to have some rest, take plenty of fluids (water, juices) and closely monitor your blood pressure values.
Increasing salt intake in your diet may be helpful in case of low blood pressure values.
Hope you will find this answer helpful!
I remain at your disposal for any further questions whenever you need!
Dr. Ilir Sharka, Cardiologist