Hello Dr Sharka 50 Year Old Women Who Has Always
Your blood pressure values are perfectly fine.
Welcome back to Ask a Doctor service!
I understand your concern and would explain that these blood pressure values, are probably related to a machine misplacement.
There is no way that very high blood pressure values ( the diastolic) may lower in a few seconds. So, I don’t think that they are real.
Besides, if these blood pressure values were real, you would feel a strong headache and dizziness.
So, there is no reason to worry about your flight and your blood pressure values.
Hope you will find this information helpful!
Please let me know in case of further questions!
Wishing all the best,